Brazil Mineral Specimens For Sale

 

       

                          Tourmaline                                                          Tourmaline on Quartz                                                      Beryl                                                Topaz                                                   Topaz

 

Brazil has supplied collectors with wonderful mineral specimens for decades.  The gem material such as tourmaline, aquamarines, and topaz receive most of the acclaim, however there are a great diversity of Brazilian minerals worth noting.  Because we purchase older collections we often have fine examples of Brazilian minerals that are not common in today's contemporary mineral market.

 

 

 

 

   

Amethyst Cathedrals (Geodes)

 

 

 

 

OKN-810

OKN-810     Agate Geode   Brazil.  Ex. Harold Dibble collection.  A polished half measuring 10 x 8.7 x 3.7 cm overall.  Bright yellow green fluorescence.  No damage.  $15

 

 

 

 

 

OKN-807

OKN-807      Geode     Brazil.  Ex. Harold Dibble collection.  This polished hemisphere measures 9 x 7.2 x 5.2 cm.  It has the traditional quartz druse lining its interior as well as some larger more prismatic clear quartz crystals.  No damage.   $20

 

 

 

 

 

 

OKO-386

OKO-386     Tourmaline     Aracuai, Brazil.  A thin, pink, lustrous gem measuring 2 cm long.  Good single termination.  No damage.  $30

 

 

 

 

 

OKO-760

Back

OKO-760    Quartz (variety amethyst and smoky)      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  13 x 8.8 x 8.5 cm.  Smoky quartz capped by thickly layered amethyst that is slightly skeletal in areas.  The amethyst is gemmy and so saturated that it is difficult to photograph easily.  Minor clay inclusions along skeletal planes.  Minor damage to tip and very minor rubs in a couple other spots.  Sits great for display and views well from any direction.  A fine piece even with the minor condition issues.  $400

 

 

 

 

 

OKO-759

OKO-759      Quartz      Minas Gerais, Brazil.    Ex. Harold L. Dibble collection.  A large doubly terminated, smoky crystal dominates this piece.  There are a couple tiny rider crystals as well but, the really odd thing is the matrix.  It is a mix of green and yellow brecciated material.  The yellow actually looks like brazilianite but I am unsure as I have not seen a piece quite like this before.  The specimen measures 12.4 x 8 x 7 cm.  There are no contacts nor damage.  An especially fine specimen.  $650

 

 

 

 

 

 

OKO-756

OKO-756      Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  This specimen is what we call a shard.  It is fully healed in an "alligator quartz" type of surface patterning.  The piece is a floater measuring 16.7 x 5.3 x 2.4 cm.  It is in really nice condition with only one termination showing some chatter/ chipping.  There is a slightly smoky coloration to the piece.  Really nice in-hand.  $190

 

 

 

 

 

OKO-757

OKO-757    Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A big parallel growth section of what was probably a huge crystal.  Main body is free of damage (the white areas are simply white colored quartz) and the edges are contacts.  Discoloration of front of big crystal seen in the second image was from a sticker I failed to notice when taking the pictures.  It is now removed.  15.7 x 15.4 x 6 cm.  $150

 

 

 

 

 

OKO-210

Back

OKO-210    Hematite    Itabira, Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain collection.  Beautiful crystal but badly dinged on top.  Front view is okay.  2.4 x 2.2 x 1.8 cm.  Twinned!  $20

 

 

 

 

 

OKO-513

OKO-513    Quartz     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A nice single crystal with stepped (“Alligator”) surfaces.  Good luster, no damage, base contact.  $45

 

 

 

 

 

OKO-508

OKO-508     Quartz    Minas Gerais, Brazil.  Ex Harold L. Dibble collection.  A 7.5 x 4.5 x 4.1 cm piece with prismatic and tabular/prismatic crystals.  Minor chipping in a couple spots, but not distracting.  Sits well on a healed base.  Nice high luster, clear crystals.  $30

 

 

 

 

 

OKO-194

OKO-194     Quartz     Resplendor, Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain collection.  A gemmy 2.5 x 1.1 x 1.1 cm crystal.  No damage, nice luster, mild smoky tint.  $20

 

 

 

 

 

OKM-169

OKM-169      Uvite on Quartz     Bramado Babia, Brazil.  Ex. Harold L. Dibble.  4.8 x 3 x 1.6 cm specimen with a 2 cm green, transparent to translucent uvite embedded in the side of a clear quartz crystal.  No damage but the back shows regrowth to the uvite so it appears incomplete in side or back view.  Front and other side view beautifully.  The quartz show secondary growth on a couple of faces and some tiny quartz attachments.  A very aesthetic miniature that is mounted on an acrylic base.  Very good example of this older Brazilian material.  $275

 

 

 

 

 

OKM-168

OKM-168      Brazilianite      Conselhiero Pena, Minas Gerais, Brazil.  Ex. Harold L. Dibble.  This wedged shaped crystal measures 3.5 x 2.6 x 1.2 cm and is gemmy with moderate internal cracks and veils.  Base contact and partially healed back contact.  No damage to main viewable surfaces.  Nice rich yellow color.  $150

 

 

 

 

 

 

OKO-765

OKO-765       Geode    Brazil.  Ex. Harold L. Dibble.  6.5 x 5.2 x 3.1 cm geode of quartz.  Well cut, polished and presented.  No damage.  $25

 

 

 

 

 

OKO-754

OKO-754      Quartz    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Three slightly citrine colored, intergown quartz crystals.  Great transparency as seen, nice luster and attractive from any view.  Very tiny chips on two of the crystals are near microscopic.  9.9 x 5 x 3.4 cm.  $175

 

 

 

 

 

OKO-183

OKO-183    Beryl (variety Emerald)     Minas Gerais, Brazil.  Ex. Charles Daniels collection.  A nice, translucent, medium green floater crystal.  It is damage free and crude in its form (but it is fully formed and double terminated).  2.3 x 1.7 x 1.1 cm.  Tough to find a emerald in any condition at this price little known one this nice with zero damage.    $80

 

 

 

 

 

OKN-788

OKN-788      Tourmaline on Microcline   Barra de Salinas, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  8.5 x 7.9 x 4.5 cm Plate of blocky, low luster feldspars with a 1.3 cm tourmaline embedded in one side.  The tourmaline is a greenish blue, gemmy and highly striated (too bad it is small).  No damage.  $85

 

 

 

 

 

 

OKN-772

OKN-772     Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A nice, smoky, skeletal crystal with high luster and lots of flash.  11.6 x 8.5 x 4.8 cm.  No damage, flat base, contact on small area of one edge.  Nice piece and price… $225

 

 

 

 

 

 

OKN-765

Bottom

Back

OKN-765     Rutile in Quartz    Brazil.  Ex. Harold L. Dibble collection.  This aesthetic specimen measures 10.1 x 7 x 5.4 cm overall and has hematite crystals to over a cm and rutile crystals to 6.5 cm in citrine colored quartz.  Very clear, very easy to see the desired details internally.  Polished front and one sawn edge.  Remainder is natural.  Back is dominated by contacts from other crystals which gives the piece an attractive background to the rutile and hematite.  Sits perfect.  Excellent condition, a really fine display piece.  Uncommon to see rutiles this robust and attractive.   $450

 

 

 

 

 

 

OKP-162

OKP-162      Tourmaline on Quartz     Brazil.  Ex. Harold L. Dibble collection.  The tourmaline on this quartz crystal is a nice bluish green color and very  translucent.  The tourmaline measures 11.2 cm and only has one termination (the other is entirely broken off and it is the backside termination that is lower on the specimen) while the entire specimen is approximately 20.5 x 11 x 11 cm.  The quartz is damage free and even the contact and base are healed.  I've made the damage to the tourmaline clearly visible.  Front view is nice but the damage is visible from the back and sides.  Small tourmalines in base of the specimen.  Sits nicely and displays well when positioned as seen in the first image or turned slightly more.  $600

 

 

 

 

 

OKO-762

OKO-762      Quartz (variety Amethyst)      Irai, Rio Grande de Sol, Brazil.  Ex. Harold L. Dibble collection.  This is a fine example of this popular material.  It measures 17.5 x 14 x 3 cm.  It served as the cover specimen on the first draft of Harold's book on quartz.  It is much better in hand with good luster an nice, complete form..  There is no damage and the only contact is on a small part of the flange seen on the lower left in the first image.  A small part of the flange was repaired (so well I can not tell where even with close scrutiny).  The backside is also free of any damage or distractions.  $750

 

 

 

 

 

 

OKO-763

OKO-763     Quartz and Tourmaline     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  This is a healed shard of quartz with several penetrating watermelon tourmalines.  The thin one seen in the last image measures 2 cm and is gemmy and complete.  The middle tourmaline is clipped off and the largest of these tourmalines has its base termination (that is out of view on the bottom) broken off.  The quartz has two unusual contacts with rims of secondary quartz that form rings on the large shard's surface.  Its surfaces are all healed so it would be considered a "floater".  18 x 12 x 4.7 cm.   $250

 

 

 

 

 

OKO-727

OKO-727     Tourmaline on Quartz     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  21 x 8.4 x 7.5 cm.  Lots of breakage so I'd consider it rough, at best.  Good green tourmalines to over 7 cm each but, almost all are missing terminations. $130

 

 

 

 

 

OKO-729

FIGURED SPECIMEN

OKO-729      Quartz     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 80, by Harold Dibble.  This one is a real oddity!  A four sided, doubly terminated crystal with a rhombohedral cross section.  Even the terminations are four sided.  Now, I believe I can explain this as a very thin, evenly proportioned shard that has healed to the point that the healed surfaces are as nice as crystal faces.  A couple small edge chips but overall in excellent condition.  The terminations are very nice with the wider one having several tabular attached crystals (tiny ones).  A really unique, figured, piece.  $500

 

 

 

 

 

OKO-728

OKO-728      Quartz and Calcite     Irai, Rio Grande du Sul, Brazil.  Ex. Harold L. Dibble collection.  A purple, pink, green, gray mix of colors compose this large plate of quartz stalactites.  23.5 x 21 x 9 cm.  There are a couple calcites on the backside edge which don't show in any of my photographs.  About a dozen stalactites are incomplete but, this appears to have been done in-situe and I don't think it is damage from human hands.  The best stalactites are well formed and terminated by bulbous clusters of colored quartz.  A fine, showy piece that will display well.  $450

 

 

 

 

 

 

OKO-152

Back

OKO-152    Uvite on Magnesite   Brumado, Bahia, Brazil.  A fine cluster with clear to slightly green, totally transparent, ascicular tourmalines all over these white (often with red inclusions) rhombohedral magnesite crystals.  3.3 x 3.2 x 2.2 cm piece that appears to be a floater.  No apparent damage, views great from any side.  Mounted in a perky box.  Very nice.  $50

 

 

 

 

 

 

OKM-104

OKM-104    Rutile and Hematite in Quartz            Novo Horizonte, Bania, Brazil.  Ex. Harold L. Dibble collection.  Wonderful, slightly smoky points with just the right amount of long, robust rutile crystals within. This is from a famous, well documented find that produced spectacular rutile sprays in six ray displays on bright , tabular hematite.  The quartz combination was uncommon and this is the finest one I have witnessed.  The hematite blades compose much of the base but most do not extend into the crystals visible on top.  One tiny tip ding on the main, double terminated crystal is a real shame as this would be an unbelievable piece if not for that blemish.  Still a real looker and desirable material.  Could use a bit more cleaning.  Comes with a custom engraved acrylic base.  $750

 

 

 

 

 

 

OKJ-809

Bottom side up

OKJ-809      Aquamarine       Minas Gerais, Brazil.  Ex. Paul and Dawne Dunning collection.  A 1.2 x .7 x .6 cm, partially etched crystal.  Minor yellow glue to be removed.  No damage floater.  $30

 

 

 

 

 

 

OKN-752

OKN-752      Quartz      Minas Gerais, Brazil.  Ex. Harold Dibble collection.  Fine clear crystals compose this 11.4 x 8 x 7.7 cm cluster.  Healed base and one area with non-healed contact or breakage.  A couple points are completely missing, broke off, but the specimen still displays very well.  $170

 

 

 

 

 

 

OKO-733

OKO-733      Beryl      Criminoso, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A large gem crystal of an unusual light green color.  It measures 5.7 x 3.6 x 3.5 cm.  One termination steeply inclined (looks to me like a healed surface vs. an actual set of faces however it also could be an etched termination.  In either case it is complete, natural and damage free.  There is one good side on the piece with the other sides showing chips on the striated prism faces.  One large contact at base of backside of piece.  It certainly has issues but is still a major specimen.  There are at least a couple of hollow tubes running almost the entire length of the crystal.  They are plugged at the termination by a light brown mineralization or clay.  $1,500

 

 

 

 

 

 

OKO-734

OKO-734    Tourmaline on Muscovite      Brazil.     Ex. Harold L. Dibble collection.  This is likely from the Pederneria Mine.  Many multicolored tourmalines to over 6 cm each cover the surface of this plate of muscovite.  The plate is large (16 x 12.4 x 5 cm), and in the shape of a shallow dome.  Crystals are everywhere but most are incomplete or broken.  The majority are blues and pinks, often with pinks having blue rims.  The largest tourmaline is quite nice; however, there is distracting mica overgrowths making it somewhat camouflaged.  $300 takes it.

 

 

 

 

 

 

 

OKO-736

FIGURED SPECIMEN

OKO-736    Quartz     Boca Rica Mine, Galileia, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 87 by Harold Dibble.  A fine large scepter of smoky quartz.  Lots of skeletal growth on both the cap and stem of the crystal.  It measures 14.5 x 9.4 x 9 cm.  There is some chipping and a little damage to cap in one spot but it is not distracting and on back of piece (even though you can view this piece from any direction nicely).  Well developed clay inclusions... not random, nice layers in between skeletal layers.  Very high luster, even for quartz.  Base is well developed and even more skeletal than the cap.  Very little base contact.  An excellent specimen of aesthetic quartz.   $1,500

 

 

 

 

 

 

OKO-737

FIGURED SPECIMEN

OKO-737      Quartz    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 18 by Harold Dibble.  It is not hard to figure out why this fine specimen was used in a book on quartz.  It is large, clear, interesting in form, average for luster, but so attractive in-hand that it really gets one's attention.  It measures 16. 5 x 4.4 x 4.1 cm and shows a strong Tessin habit development.  One of its two terminations has a micro rub (Wilber).  Light prism striations on some faces.  A fine piece.  $950

 

 

 

 

 

 

OKO-738

OKO-738     Quartz      Minas Gerais, Brazil.    Ex. Harold L. Dibble Collection.  Deep smoky colored, transparent quartz point with no damage and high aesthetic values.  Great luster and form, rich color, gemmy except at base.  Termination has a large rainbow as seen in third image.  $600

 

 

 

 

 

 

OKN-703

Front view

Back view

Back side with heavy tourmaline encrustation

Base with watermelon tourmalines

Top termination showing green and watermelon tourmalines

OKN-703     Tourmaline with Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  One of his finest specimens this huge crystal cluster measures in at an impressive 58 cm long.  It probably weights in at approximately 100 to 150 pounds as I can just barely lift it waist high.  The main quartz crystals are double terminated and heavily encrusted by and included by large green tourmalines to 16.5 cm long and over 3 cm wide each.  The base termination and what I would call the top (top in the first two photos with myself) have very attractive watermelon crystals that are among the largest crystals in the quartz.  The back side is more heavily coated with a thick aggregate of tourmalines of all sizes.  The tourmalines are for the most part transparent with bigger ones being translucent.  The green is quite dark by very clearly GREEN, not black.  It is likely that many more of the crystals are watermelons (having pink cores and green rinds) but unless they are broke it is difficult to tell with casual viewing.  The luster on both the quartz and the tourmalines is excellent.  I just washed the specimen before the photos were taken but the specimen IS DRY, not wet.  The photos are obviously not studio pics and this is all the photographic work I am willing to put into this piece.  It is simply too difficult to move around.

There are plenty of tourmalines that are not terminated but equally as many are.  The terminations are crude to very nice depending on the crystal.  The quartz is in excellent shape with far less damage than would be expected for a specimen of this large a size.  The top and bottom terminations each have a small area with chipping... very minor.  I will not ship this piece so it is for pickup here or at a show I do.  A reasonably close personal delivery could possibly be arranged for a small fee.  A dolly is required to move this specimen and it is very difficult to move floor to floor (but is possible with effort). 

The piece is most suited as a large home decor or museum piece.  When properly lit and backlit it glows!  Fantastic display piece.    $6,000

 

 

 

 

 

 

OKO-732

FIGURED SPECIMEN

OKO-732    Quartz     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  This is a strange piece described in Harold's book.  It is composed of small stalactites of quartz.  It looks to me like there are thin tabular calcites capping some of the quartz stacks.  VERY strange.  Not very aesthetic so $200 will find it a new home.  19.1 x 12 x 6.1 cm.  No damage.  $200

 

 

 

 

 

 

ON-548

OKN-548     Tourmaline    Minas Gerais, Brazil.  Ex. Harold Dibble collection.  Vibrant blue crystal measuring 2 x 1.2 x 1 cm.  Cap is gemmy with remainder having moderate internal inclusions/ fracturing.  Wild looking termination with interesting and very high luster growth hillocks.  Striated prism.  Minor contact on back that is well healed.  No damage.  Great piece.  $220

 

 

 

 

 

 

OKN-550

OKN-550   Topaz    Dom Bosco, Minas Gerais, Brazil.  2.6 x 1 x .6 cm single crystal of rich color and very high luster.  Minor natural pitting.  No damage.  $85

 

 

 

 

 

 

OKM-992

OKM-992    Brazilianite    Mendes Pimentel, Minas Gerais, Brazil.   Ex. Harold L. Dibble collection. An attractive sulfur yellow primary crystal that is gemmy with a couple of translucent attachment crystals and other minerals in base.  3.8 x 3 x 2.8 cm overall.  Edge contacts and chipping on attached crystals but main crystal is nice.  A very good example of this material.  $120

 

 

 

 

 

 

OKN-551

OKN-551   Topaz    Dom Bosco, Minas Gerais, Brazil.  4 x 1.2 x .8 cm single crystal of rich color and very high luster.  Minor natural pitting but one is large.  No damage, gemmy regions.  A very fine specimen of this material at a reasonable price.   $160

 

 

 

 

 

 

 

OKN-552

OKN-552     Tourmaline    Minas Gerais, Brazil.  Ex. Harold Dibble collection.  2 x 1.8 x 1.4 cm single crystal of nice pink color and moderate luster (termination less lustrous.  Very minor chips in two spots seen with magnification otherwise in excellent condition.  $90

 

 

 

 

 

 

 

 

OKN-547

OKN-547     Tourmaline    Minas Gerais, Brazil.  Ex. Harold Dibble collection.  A single crystal of moderate luster and nice translucence.  It measures 1.4 x 1.3 x 1.2 cm.  No damage, attractive tourmaline from Brazil.  $50

 

 

 

 

 

 

 

OKN-545

OKN-545     Tourmaline    Minas Gerais, Brazil.  Ex. Harold Dibble collection.  Nicely formed single crystal of pink tourmaline capped by green.  Very gemmy internally (facetable).  Very tiny flak off one edge only noticed with magnification.  Good luster and a couple tiny white crystals on termination (muscovite?).  Very nice example.  $65

 

 

 

 

 

 

 

OKN-712

OKN-712     Tourmaline    Aracuai, Jequitinhonha Valley, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Finding miss-sharpen tourmaline crystals is not all that uncommon but one of this size and high quality is truly unique.  It was one of the centerpieces of Harold's collection.  This single terminated crystal  is 28 cm long (almost a foot!) and the primary crystal is 3.5 cm wide and 2.1 cm thick on average.  It is very high in luster and one side crystal is clipped off, a likely contact.  I'd describe it as damage free.  It displays great from any direction.  The curve is not what is commonly seen, a healed break or series of breaks.  It is just simply curved... smooth, symmetrical and spread over the entire length of this massive crystal!  The termination is complex and generally fibrous in form.  All the prism faces show moderate striations.  This is one of those specimens that collectors simply go, "Wow"! and stare blindly at.  Even better in-hand.  $3,000

 

 

 

 

 

 

OKN-543

OKN-543     Tourmaline    Minas Gerais, Brazil.  Ex. Harold Dibble collection.  Translucent green and pink zoned single crystal measuring 1.8 x 1.7 x 1.1 cm.  Crude form and heavily striated.  No damage.  $45

 

 

 

 

 

 

 

OKN-464

OKN-464     Rose Quartz on Quartz and Mica.  Lavra da Ilha, Minas Gerais, Brazil.  5.3 x 4.1 x 2.3 cm with a substantially sized grouping of pink quartz on two quartz crystals with sprays of interesting mica.  Minor Styrofoam attached on base.  No damage, low to moderate luster.  $45

 

 

 

 

 

 

 

OKN-332

OKN-332     Topaz     Ouro Prito, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A nice "Imperial" topaz measuring 3 x 1.5 x 1.1 cm.  Vibrant color and the highest of lusters.  Very tiny tip ding can be seen in first image.  Los of transparency with internal fractures.  $225

 

 

 

 

 

 

 

 

OKN-107

OKN-107    Tourmaline    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  5.2 x 2.5 x 2.4 cm single terminated crystal of a rich pink color.  Good luster and form but termination is frosted and shows minor edge wear in a couple spots.  $395

 

 

 

 

 

 

 

OKN-103

OKN-103     Rutile on Hematite   RESERVED   Novo Horizonte, Bahia, Brazil.  A small (4.2 x 3.8 x 2.2 cm) specimen that is very complete and damage free.  Sits well and is of the high luster one would expect from both species.  A nice deal on this one...  $150

 

 

 

 

 

 

OKM-932

OKM-932    Fluorapatite     Aldea Velha Mine, Conselheiro Pena, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Bright, lustrous blue double terminated crystals compose this damage free cluster.  It is a floater measuring 1.8 x 1.7 x 1.1 cm.  Nicely composed, great phantoms.  Mounted in a perky box.  Excellent example.  $45

 

 

 

 

 

 

 

OK-117

OKN-117      Calcite      Irai, Rio Grande do Sul, Brazil.  Ex. Harold L. Dibble collection.  5.6 x 4 x 4 cm grouping of triangular profiled prismatic crystals of milky colored calcite to 3.5 cm each.  Edges show breakage from removal as would be expected but body of specimen is damage free. Small block of Styrofoam glued to base so the piece stands upright.   $80

 

 

 

 

 

 

 

OKN-329

Back view

Front view

OKN-329     Quartz      Corinto, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Nice display piece with clear crystal some selective face hematite inclusions.  8 x 7.2 x 6 cm with points to 5 cm each.  Clean front and side views.  Back view shows a couple bobble with magnification but still a great view too.  Edge contacts and flat base.  Great luster and excellent clarity to crystals.  $140

 

 

 

 

 

 

 

OKN-976

The tiny back spot at top right of this and the next image has been removed.

Scew dislocation

OKN-976     Topaz with Screw Dislocation     Virgem da Lapa, Jequitinhonha Valley, Brazil.  Ex. Harold L. Dibble collection.  This is a pleasing light to medium blue, natural topaz of very high quality.  The really unusual part is it obvious screw dislocation growth feature running its entire length parallel to the "c" axis.  More common in the beryl family of minerals these are quite uncommon in topaz crystals.  This one is only a couple millimeters wide but is much more obvious than my one image indicates.  It can be seen very clearly through the largest of the five non-etched faces.   Take my word on this one..."you can't miss it"! 

The luster on this fine specimen is exceptionally high showing no frosting or abrasion.  It is a damage free floater showing many surfaces etched to different degrees.  Some quite lightly and others heavily leaving behind razor sharp edges.  Internally all gem showing none of the typical veils or internal fracturing.  I only do point and shoot photography for these listings and this is one of those specimens that deserves better.  The crystal views great from any side and sits perfectly for display without a base.  Only one small chip on backside.  It is exquisite in hand and likely the finest specimen from Harold's collection.  7 x 6.6 x 5.5 cm overall.  $8,500

 

 

 

 

 

 

 

OKN-975

OKN-975    Topaz     Virgem da Lapa, Jequitinhonha Valley, Brazil.  Ex. Harold L. Dibble collection.  This is a pleasing medium blue, natural topaz of very high quality.  The luster is exceptionally high showing no frosting or abrasion.  There is one internal but shallow crack on one side that I've tried to show clearly in the fourth image.  Internally very clean for this material... almost all gem.  Great faces visible on all sides less one (the back) which is a mix of contacts that are healed, etched surfaces and a couple small chips near the base of the crystal.  Extremely good condition even on a micro level showing no minor dings, rubs or marks.  Great consistent color with no distractions from its high aesthetics.  The base is cleaved so the specimen sits great without any base.  Only one small chip on backside.  8.2 x 6.5 x 5 cm overall.  $5,500

 

 

 

 

 

 

 

OKN-327

Bottom

OKN-327     Quartz      Minas Gerais Brazil.  Ex. Harold L. Dibble collection.  This floater totally complete with beautiful, clear point to 6.4 cm each.  The piece measures 8.4 x 6.5 x 5.3 cm overall.  Base is somewhat flat so it sits great.  The highest of lusters, aesthetic form, and fantastic quality.  One tip ding that needs magnification to find.  $300

 

 

 

 

 

 

OKN-127

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OKN-127     Quartz     Coronel Murta, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 86, by Harold Dibble.  A triangular shaped piece that is 18 cm on edge.  Crystallized on all sides.  The largest, top crystal (the one on left in forth pic) has a large bubble enhydro that moved within a 1 cm opening.  The bubble is approximately .3 cm.  Numerous clay inclusions.  There is minor chipping on edges of piece and on one of the numerous terminations so it isn't perfect... but it is really nice for a specimen of this type.  No distracting issues and completely crystallized on back, as well as front.  More impressive in-hand than I can portray in the photographs.  $950

 

 

 

 

 

 

 

OKN-128

OKN-128    Tourmaline on Quartz   Cruzeiro, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Dark green, translucent, lustrous tourmalines all over a large quartz crystal.  The tourmalines are nicely formed, deeply striated, up to 7 cm in length but many are not terminated.  The quartz is poorly formed and milky in color.  The main spray of crystals in the center are nicely terminated.  Sounds like a train wreck but it is actually a desirable specimen and typical of material from decades ago.  14 x 11.5 x 8 cm along edges.  Over 17 cm diagonally.  Sawn flat base so it sits well showing off the tourmalines on all sides and top (nothing decent on back of specimen).  I think someone will have a place in their collection for this substantial specimen at this price.  $400

 

 

 

 

 

 

 

 

OKM-824

FIGURED SPECIMEN

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OKM-824      Quartz    Brazil.   Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 75 By Harold Dibble.  This large cluster at first glance has an Arkansas look to it... lots of tabular, double terminated, clear to milky crystals compose this large, 16 x 11 x 8 cm cluster.  The damage is minor with two spots on the front showing crystal breakage and back and a few more.  Overall in nice condition as Harold's book and the images show.  High luster well formed crystals without distracting qualities such as staining, contacts, etc.  $700

 

 

 

 

 

 

 

 

OKM-822

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OKM-822     Quartz       Brazil.    Ex. Harold L. Dibble collection.  A large plate measuring 22 x 17 x 5.3 cm.  Smoky tips on parallel growth (actually one crystal or a healed shard off of one huge crystal) with gemmy interiors to upper half of specimen and more included interior to lower half of specimen.  Very nice displayable example of high luster.  Only the very tiniest of tip dig on last termination.  Upper regions are the quality of fine alpine quarts like that from Switzerland.  Really nice piece for a Brazilian specimen.  $550

 

 

 

 

 

 

OKM-809

This seems to be the best (most accurate) color representation

OKM-809    Topaz     Virgem da Lapa, Jequitinhonha Valley, Brazil.  Ex. Harold L. Dibble collection.  This is a beautiful rich blue (images appear more washed out and lighter than the actual piece, also there are no green overtones, it is a true rich blue) natural topaz of very high quality.  The luster is exceptionally high showing no frosting or abrasion.  The accessory species is lepidolite and is sparse providing an attractive and not distracting highlight to this gemmy crystal.  Internally very clean for this material with no serious fracturing.  Views through to an etched backside that has some large smooth chipped regions that blend nicely with the etched regions.  One end is chipped and other fully terminated.  13.1 x 6.1 x 5 cm overall.  I've shown plenty of photos so you can determine if the backside damage distracts you.  I do not think it is distracting.  I feel it is a high quality example of rare to find material.  $7,500

 

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