April 2017 Update, Page 5

 

 

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-702

OKO-702      Calcite with Pyrite and Marcasite      Conco Mine, North Aurora, Kane County, Illinois.  An impressive 20 x 19 x 10 cm piece with lots of crystallization on all sides.  Natural contacts are obvious.  Damage is very minimal for a piece of this size.  I can only find a couple cleave crystals on one end. This specimen has a nice high luster, better than most from the single pocket find.  I'm sorry, but my photographs and lighting fail to show the high luster that is present.  It is indicative of the finest material to come from the find.  An impressive grouping that will get looks in any collection.  $245

 

 

 

 

 

 

OKO-703

OKO-703      Calcite with Pyrite and Marcasite      Conco Mine, North Aurora, Kane County, Illinois.  An impressive 27 x 26 x 11 cm piece with lots of crystallization on front and sides sides.  the only damage is to only one crystal in the lower region of the piece.  Crystals to almost 4 cm each with outstanding sulfide phantoms.  This specimen has an excellent high luster, better than most from the single pocket find.  An impressive grouping that is very three dimensional.  It almost stands up on its own so will need very little assistance in order to display great.  All views except base and back are impressive.  I'm sorry, but my photographs and lighting fail to show the high luster that is present.  It is indicative of the finest material to come from the find.  This is a very fine example from a limited find.  $450

 

 

 

 

 

 

OKO-720

OKO-720      Fluorite on Quartz     RESERVED    Clara Mine, Oberwolach, Wolfach, Black Forest, Germany.  Ex. Harold L. Dibble collecton.  This is a huge example for this European locale.  It measures in at 20 x 16.5 x 10.5 cm overall. The quartz isn't in very good shape while the fluorites are.  They ar light green, very translucent, highly modified balls to over 3 cm each.  Condition is an issue on this one however it is an important piece for size and location.  $400

 

 

 

 

 

 

OKO-721

OKO-721     Celestine     Sakoany, Majunga, Madagascar.  Ex. Harold L. Dibble collecton.  This is a fine, nice blue geode from a prolific location.  It measures approximately 24 x 18 x 14 cm.  I've had many nice examples of this material in the past but this is likely the finest.  It is exceptionally large, undamaged, and has exceptionally lustrous, rich blue crystals that are large and finely formed.  The vug is deeper and better developed than my camera can show.  Depth of field limits me in really giving you a fair assessment as to how exceptional this one is.  It might appear the the front is somewhat blocked by the large cluster of smaller crystals, but in person, this is not an issue and the visibility into the piece's interior is just fine.  This is a magnificent example of this material.  $1,500

 

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