May 2016 Update, Page 2


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. 




Back.... base

OKN-982      Fluorite      Weardale, Durham, England.  Ex. Harold L. Dibble collection, prev. Richard Norman Kelley, perv. Lazard Cahn collections.  A large, historic specimen with wonderful provenance.  This museum sized piece measures 20 x 16 x 6 cm with nicely twinned and simple cubes to 3.8 cm each on edge.  Great purple color and transparency in areas and other zones of the crystals have that classic whitish look.  In excellent condition with only a couple very tiny corner cleaves close to the edges.  No rough edges or areas of lower luster.  Much better in person.  Tiny, clear, double terminated quartz crystals are scattered about over the display face making for more flash while the entire backside... base is coated by larger, intergrown quartz crystals of a more milky color.  Only one small chip on backside.  An exceptional quality English specimen for the discerning collector.  $4,800









OKN-983     Strontianite, Calcite, Fluorite     Minerva #1 Mine, Hardin Co., Illinois.  Ex. Harold L. Dibble collection.  10.5 x 7 x 6.6 cm mound of crystals of exceptional quality.  No damage which is nothing short of a miracle when it comes to these fine, acicular points.  A heavy coverage of translucent white spikes almost everywhere on this calcite encrusted, domical matrix.  Small cubes and partial (etched) cubes of rich purple fluorite are a nice addition and contrasted on the beds of strontianite balls.  Views well from any direction.  Nice luster for strontianite (better than the images portray).  $485








OKN-984    Apatite     Otter Lake, Quebec, Canada.  Ex. Harold L. Dibble collection.  A very fine, high luster single crystal that measures 10 x 3.8 x 2.5 cm overall.  Double terminated with better formed, than usual, terminations.  One is very nice and other is also decent but cruder and with a tiny fractured area.  An excellent example of this material.  $90







OKN-987     Manganocalcite     Silverton, Colorado.  Ex. Harold L. Dibble collection.  A large plate of large medium pink crystals to several cm each.  It measures approx. 12 cm on each side of the equilateral triangle and is 6.5 cm thick.  One area has several cleaved points, still a nice specimen for the location.  $250








OKN-988     Topaz     Southern Yunnan Prov., China.  Ex. Harold L. Dibble collection.  A very large crystal measuring 6 x 6 and 6.3 cm high.  Transparent with internal veils.  Numerous terminal faces, nice luster on all sides.  This is a more contemporary specimen (no more than 8 years old) and an excellent example of one of these.  I don't believe that I'd be able to get one this good at Tucson at the wholesale show for this price.  Only one small chip on backside.  Comes with a custom engraved acrylic base.  Great topaz!  $1,900








OKN-989     Quartz     Arkansas.  Ex. Harold L. Dibble collection.  9.3 x 9 x 8 cm with stocky crystals to 10 cm each.  Free of any damage, displays/ sits great.  A very nice quality quartz.  $100








OKN-991      Gypsum  RESERVED   Pina de Ebro, Zaragosla, Spain.  Ex. Harold L. Dibble collection.  7.1 x 6 x 3.6 cm plate of water clear crystals on matrix.  This specimen is pristine with no damage even on edges or to crystals that extend past the edges.  All crystals are totally clear and of the highest luster.  Great example at a very good price.  $85








OKN-970     Descloizite    Berg Aukas, Grootfontein, Namibia.  Ex. Harold L. Dibble collection.  Very clean crystals of descloizite with dolomite overgrowths in areas gives this fine piece contrast and greater aesthetic value than most.  The crystals are very translucent, perfectly formed and free of damage.  Much flashier in hand.  Edge contact as seen but even this is not at all distracting because the crystals at the edges are smaller in size.  Impressive example for this price.   $375








OKN-971      Barite with Calcite      Maybee, Michigan.  Ex. Harold L. Dibble collection.  Large, thick bladed crystals to over 6.5 cm each compose this light blue specimen dominated by barite.  Piece measures 9.1 x 8.1 x 7 cm overall.  The matrix has schalenohedral, yellow calcites with most being covered by the barite.  Big barites are damage free but a section of front does show damage in one spot.  Still, this piece will display very nicely and is a value at.... $180








OKN-972     Barite      Montreal Mine, Montreal, Wisconsin.  Ex. Harold L. Dibble collection.  I don't see many of these around and have only owned a few, of which this one is the finest by a large margin.  It has big, milky/ transparent, well terminated crystals with glassy luster on one side and satin luster on the other.  All the large important crystals are damage free while a few small ones near the bottom edge show damage.  This could be trimmed if the damage is concerning and the size of the piece would not be dramatically reduced.  Now it measures 8.1 x 7.1 x 6.6 cm overall.  The largest crystal is 6 cm.  I've never seen crystals from this location even half this size before.  $475









OKN-973      Gypsum    Pina de Ebro, Zaragosla, Spain.  Ex. Harold L. Dibble collection.  It is impressive to see one of these where the entire vug has been extracted, trimmed and can be considered aesthetic.  My photos are not doing this specimen justice.  It displays great, has no damage and sits in various positions.  The light enters easily from any side and the openings are large enough for fine views all around.  This is a mesmerizing specimen to view and handle.  The type of piece that even non-mineral enthusiasts will "ohhh" and "ahhh" over.  10.2 x 7.6 x 5.9 cm overall.  $800









OKN-974     Barite     Yorkshire, England.  Ex. Harold L. Dibble collection.  A very fine barite with no damage, only minor edge contacts.  Well formed white, transparent/ translucent crystals to 3 cm each make up this slightly domical plate that measures 9.5 x 7.6 x 4.1 cm.  Classic material.  Attractive example.  $400








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




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