February 2016 Update, Page 2

 

Just 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. 

 

 

OKM-836

FIGURED SPECIMEN

OKM-836      Quartz     Dal'negorsk, Primorsky Kray, Russia.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 62 By Harold Dibble.  A fantastic example of this rather strange material.  It measures 11.5 x 3.5 x 2.6 cm.  It is damage free, has healed surfaces on base where it was once on matrix, good clarity and nice luster.  A very fine piece which is why it was photographed and figured in this book.  $400

 

 

 

 

 

 

 

OKM-837

FIGRED SPECIMEN

OKM-837      Quartz     Dal'negorsk, Primorsky Kray, Russia.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 62 By Harold Dibble.  A fantastic example of this rather strange material.  It measures 11.9 x 4.8 x 2.1 cm.  It is damage free, has healed surfaces on base where it was once on matrix, good clarity and nice luster.  Two small branching crystals very fine piece which is why it was photographed and figured in this book.  $400

 

 

 

 

 

 

 

OKM-838

OKM-838     Gyrolite with Apophyllite     Bombay, (now Mumbai of course), India.  Ex. Harold L. Dibble collection.  I look at thousands of Indian specimens every year and this ranks as the most important gyrolite of this size I have seen for sale.  They are normally seen on matrix in small clusters with the other zeoite species so common from India.  At 7 x 6.5 x 4.1 cm this cluster is large and well formed.  Attractive from any direction...huge.  Matt luster over most of the piece, a floater with not points of attachment anywhere (very unusual).  Zero damage.  Minor apophyllite.  An impressive example!  $395

 

 

 

 

 

 

 

OKM-839

OKM-839     Manganocalcite, Quartz, Pyrite    Huanzal, Peru.  Ex. Harold L. Dibble collection.  Not uncommon material but uncommon in this quality.  Nice pink low luster rhombs to 3.4 cm on edge.  I think the largest pair is actually a twin but could just be two intergrown crystals.  Pyrite crystal on base.  No damage to body of specimen (two tiny quartz are broken right on one edge of specimen as would be expected from specimen removal).  Nice form with the largest crystals sitting up high in a prominent position.  Displays well and measures 8.5 x 8.1 x 6 cm overall.  Very fine quality.  $500

 

 

 

 

 

 

 

OKM-840

OKM-840   Calcite    Mina Chiquitina, Chihuahua, Mexico.  Ex. Harold L. Dibble collection.  A neat calcite measuring 8 x 6.5 x 5 cm with large crystals in a divergent grouping.  The crystal as multiple terminated and stepped in form.  Nicely translucent and of good luster.  Only damage is one broke crystal on backside of specimen.  Views nicely from all directions (except back and that view isn't bad either).  Nicely priced....  $90

 

 

 

 

 

 

 

OKM-843

Back?

OKM-843     Calcite on Strontianite and Fluorite    Minerva #1 Mine, Cave-In-Rock, Illinois.  Ex. Harold L. Dibble collection.  A fine example of these species...damage free calcites sitting up high on strontianite needles and a few small fluorites.  Numerous strontianite needles are clipped, they are of course quite fragile, but everything else is in great condition.  Fluorites are complete.  5.5 x 5.5 x 4.9 cm. Good piece.  $225

 

 

 

 

 

 

 

OKM-844

OKM-844    Gypsum     Mexico.    Ex. Harold L. Dibble collection.  Specific location unknown for this nice "Rams Horn" selenite piece.  It is a single curl that resembles a breaking wave on a beach.  9.4 x 5.3 x 5 cm.  There appears to be a small contact spot on top but looks damage free in all other respects.  A good example of now uncommon material.  $230

 

 

 

 

 

 

 

OKM-845

OKM-845    Cassiterite     Viloco District, Bolivia.  Ex. Harold L. Dibble collection.  Several previous collection tags beginning with Ward's of Rochester show a nice provenance for this stocky cassiterite specimen.  I t measures 10.8 x 7 x 5 cm and is sawn flat on its base.  Solid cassiterite matrix makes this a robust and heavy specimen with crystals up to 3.4 cm in diameter.  The crystals appear opaque but are TRANSLUCENT ...when backlit even the largest show light passing through them.  Minor chipping to some crystals.  A fine example from an important location which has provided us what could be considered some of the finest cassiterite on the planet.  $400

 

 

 

 

 

 

 

OKM-846

OKM-846     Calcite, Barite, Strontianite, Fluorite.   Minerva #1 Mine, Cave-In-Rock, Illinois.  Ex. Harold L. Dibble collection.  This interesting mix shows large, yellow, double terminated sprays of calcite on purple fluorite.  It measures 8.8 x 7 x 4.9 cm overall.  Only a couple very tiny cleaves on calcites, practically damage free, attractive (more so in hand), and well crystallized.  The barite is white and in very small crystals, the strontianite is also white and sits right in the center of the specimen in a perfect little "bowtie" while most of the fluorite is interlocked with the calcites in the specimen's base.  Views great from any direction including base.  Almost a floater with only a tiny contact on base.  Very, very nice piece!  $450

 

 

 

 

 

OKM-847

OKM-847    Prehnite, Quartz, Calcite and Babingtonite?   Bombay, (now Mumbai of course), India.  Ex. Harold L. Dibble collection.  A small vug in a specimen measuring 6 x 3.8 x 3.3 cm.  Very interesting assemblage on tiny quartz crystals includes small, very clear calcite, what looks to be babingtoninte, and the primary mineral prehnite.  The prehnite is in several generations and colors:  Small light green balls, medium green larger balls, light blue balls (tucked in and less obvious but large) and finally very small, darker blue balls.  Different!  $90

 

 

 

 

 

 

 

OKM-848

Back

OKM-848    Barite     Indian Head Rock, Basin, Jefferson County, Montana.   By far, the finest example of this material that I have ever seen for sale.  Beautifully aggregated, not just jumbled together like most, with the largest crystal standing upright central to the piece.  Huge, measuring in at a whopping 11.3 x 8 x 6.4 cm.  the big crystal measures 7.6 cm on edge!!!  No damage and only expected edge contact.  The typical look...medium luster but bright when inspected on a micro level, amber color, good translucence, and the notable selective face overgrowths by smaller barites.  A museum grade specimen in all respects.  A thing of beauty in-hand.  $4,500

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