April 2016 Update, Page 6

 

Recently Acquired

The Harold L. Dibble Collection

Harold Dibble, is the author of "Quartz: An Introduction to Crystalline Quartz", and was a well known east coast collector.  He passed in 2014 and his collection of fine minerals will be offered in upcoming months.  Some of his most important specimens grace the displays in the Seaman's and Smithsonian museums.  Harold's passions also included art and he was early in recognizing minerals as Nature's works of art.  Many of his minerals reflect this ideal. 

 

 

OKN-417

OKN-417      Quartz     Hot Springs, Arkansas.  Ex. Harold L. Dibble collection.  Although common, fine quartz specimens are seldom quite as display worthy as this one.  The cluster measures 14.9 x 11 x 8.2 cm.  The balance and form are great and the crystals are of high quality.  The specimen views well from any direction but does need a stand to show upright as I am showing it in the images.  There is a tip ding on the backside of he big point.  Aesthetic and well priced.  $195

 

 

 

 

 

 

OKN-418

OKN-418     Quartz     Hot Springs, Arkansas.  Ex. Harold L. Dibble collection.  This is a large, imposing quartz plate with big damage free crystals.  It would make a fine home decor specimen but would also display great in a cabinet.  24 x 18 x 14 cm.  High quality crystal in a large plate weighing in at about ten pounds.  No damage anywhere.  The sandstone matrix is healed with small quartz crystals appearing in several places on its back and base surfaces.  Mostly single terminated crystals with some being double terminated.  Much better in person.  $400

 

 

 

 

 

 

OKN-416

OKN-416    Calcite on Amethyst     Irai, Rio Grande, Brazil.  Ex. Harold L. Dibble collection.  This large cabinet specimen is a partial vug of light colored amethyst crystals containing an acicular group of calcites attached to its base.  The calcites are reattached as a single group to the matrix but the final product displays as a damage free specimen with high aesthetics (from the side or back with magnification one can see it is repaired, third image).  It measures 22 x 15.5 x 8 cm overall with calcites to 7 cm.  The long thin calcites show no damage nor does the fine cathedral of quartz it resides in.  Due to the repair I will offer this at a lower than expected price.  $500

 

 

 

 

 

 

OKN-433

OKN-433     Quartz on Fluorite    Boltsburn Mine, Rookhope District, Weardale, Durham, England.  Ex. Harold L. Dibble collection.  A large single twin of fluorite with some areas having small clear beta form quartz crystals embedded in its surface.  The crystal has great color and luster, as well as large gemmy areas throughout.  A classic from years gone by.  VERY large crystal with some cleaves on some corners and minor chatter on a couple edges.  Overall it is in fair condition.  11 x 10 x 7 in longest dimensions and 7.2 cm on edge of biggest cube.  This is likely an old specimen and certainly an unusual find for a contemporary mineral collector.  $395

 

 

 

 

 

 

OKN-434

OKN-434     Scolecite    Nashik,India.  Ex. Harold L. Dibble collection.  11.2 x 9.2 x 7.4 cm.  A palm sized grouping of randomly scattered white, translucent crystals composes this specimen.  Nice condition overall although there are likely crystals that have been clipped or were once attached to matrix or other crystals.  Displays well from all directions.  $250

 

 

 

 

 

 

OKN-437

Back

OKN-437      Calcite     Chihuahua, Mexico.  Ex. Harold L. Dibble collection.  Attractive light pink calcites in a row like formation on calcite matrix (most in parallel growth).  Attractive color, medium luster, excellent transparency, and large size make for a desirable specimen.  It sits nicely for display and looks good from any direction.  Minor scuffing on a couple edges but in nice condition overall.  $320

 

 

 

 

 

 

OKN-436

OKN-436      Almandine     Norway.  Ex. Harold L. Dibble collection.  Classic material not often seen for sale.  Good garnets with most being complete and damage free (two on the edges are broken).  15.1 x 11 x 5.4 cm.  Garnets to 2.7 cm each.  $250

 

 

 

 

 

 

OKN-421

OKN-421     Quartz     Crystal Peak, Colorado.  Ex. Harold L. Dibble collection.  This is an aesthetic Colorado quartz with smoky and very gemmy, high luster crystals.  Minor feldspar (white).  The cluster has a nice balance and the crystals diverge in an attractive manner.  Excellent condition.  A very fine miniature.  4.9 x 4 x 2.3 cm.  Flat base and back with edge contacts.  Front displays nicely.  Crystals are exceptionally nice.    $75

 

 

 

 

 

 

OKN-423

OKN-423      Barite    Muddy Creek, Tributary of Crater Creek, Rio Grande County, Colorado.  Ex. Harold L. Dibble collection.  Nice diamond shaped, stocky, translucent crystals of white/ gray color on matrix.  In perfect condition.  5.1 x 3 x 2.7 cm overall with largest crystal being just shy of 3 cm.  Unusual location.  Great example.  $150

 

 

 

 

 

 

OKN-424

OKN-424    Spessartine      Navegador Mine, Conselheriro Pena, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  This example of garnet is very aesthetic, composed of gem material, has beautiful surface patterning.  Deep red color, high luster and aesthetic form make it a desirable piece.  Mounted on an acrylic base.  Tiny (micro) chip on left front) as shown.  Really difficult to find unless told where it is.  $220

 

 

 

 

 

 

 

OKN-425

OKN-425     Amethyst with Enhydros    Brandenberg, Erongo Region, Namibia.  Ex. Harold L. Dibble collection. A deep purple amethyst point with a milky base.  A single crystal that is damage free with moderate luster.  At least two nice enhydros with movable gas bubbles.  $180

 

 

 

 

 

 

 

OKN-426

OKN-426      Quartz     Rio Grande do Soul, Brazil.  Ex. Harold L. Dibble collection.  Unusual stalactites of light pink quartz standing off a quartz matrix and all leaning in one slanted direction.  The stalactites have green cores and a feathery appearance that is attractive.  The luster is excellent and there is no damage present.  A substantial plate measuring 11 x 9.2 x 5 cm.  Excellent and unusual quartz specimen.   $400         

 

 

 

 

 

 

OKN-427

OKN-427     Herkimer Diamond (quartz)      Middleville, New York.  Ex. Harold L. Dibble collection.  A fine Herkimer diamond with only a couple inclusions that are actually well formed negative crystals.  It is a bit unusual as it has a square profile (pseudo cubic).  High quality for one of these fine quartzes with only a micro touch to matrix and micro blowout (base or backside).  2.6 z 2.3 x 2.3 cm.  $180

 

 

 

 

 

 

OKN-428

OKN-428     Celestine on Sulfur     Caltanisetta, Sicily, Italy.  Ex. Harold L. Dibble collection.  An attractive spray of chisel shaped, translucent, lustrous barite crystals standing up on yellow sulfur.  The spray of crystals diverges in all directions allowing for fantastic views from any direction.  A couple of edge crystals are missing as should be expected but there is no damage to be described.  Nice piece.  $380

 

 

 

 

 

 

OKN-429

OKN-429      Calcite on Anhydrite      Naica Mine, Naica, Chihuahua, Mexico.  Ex. Harold L. Dibble collection. Two large feathery anhydrite crystals that cross compose this specimen.  Tiny clear to white calcites on the terminal areas of the crystals creates an attractive accent.  Backsides have an heavy coating of calcite.  Displays well.  10.4 x 5.3 x 3.5 cm.  No damage.  $145

 

 

 

 

 

 

 

OKN-430

OKN-430     Quartz with Chlorite      Schyn-Schlucht, Graubunden, Switzerland.  Ex. Harold L. Dibble collection.  An interesting quartz with a scepter like form.  Milky to slightly smoky with a well developed chlorite coated phantom over a prismatic crystal.  The phantom is within a scepter form crystal so it is even more interesting in that respect.  Base has plate like development commonly seen in quartz from Da’negorsk, Russia.  No damage.  Floater.  7.7 x 3.4 x 2.3 cm.  Good luster and an interesting, crazy, form.  $250

 

 

 

 

 

 

 

OKN-431

OKN-431      Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A cluster of nice quartz points with overgrowths of a second generation of much smaller, double terminated, quartz crystals.  All crystals are clear to slightly milky and of very high luster.  One matrix contact and one very small piece of attached matrix.  No damage.  Really nice quality quartz specimen.  10 x 8.8 x 5.5 cm.  $275

 

 

 

 

 

 

OKN-432

OKN-432     Copper     Keweenaw Peninsula, Michigan.  Ex. Harold L. Dibble collection. This branching network of copper crystals is composed of nicely formed crystals to 1.6 cm in length.  The piece measures 7.6 x 5.2 x 3.8 cm.  It is an aesthetic grouping with no points of attachment.  There are two distinct generations of crystals with the first being larger, and in many cases, exceptionally well formed.  Many of these crystals are exceedingly complex.  The color ranges from a classic copper patina to somewhat brighter areas.  No damage.  Really fine example of North American copper.  $500

 

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