January 2016 Update, Page 3


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-152    Rhodochrosite    Huaran, Peru.  Ex. Harold L. Dibble collection.  9 x 8.5 x 6 cm ball of rhodochroste and pyrite.  Undulating botryoidal mounds of pink rhodochrosite.  No damage.  $300









OKM-149    Calcite on Galena        RESERVED        2nd Sovietsky Mine, Dal'negorsk, Russia.    Ex. Harold L. Dibble collection. I remember these only being available for a short time about 12 years ago.  I have always thought of them as the "iconic" Russian specimen.  They were very expensive at the time and I've only manage to ever get a few through the purchase of collections.  This is the best one that I have personally seen anywhere.  Not only is it fairly large, the galena crystals are highly lustrous and beautifully formed, almost sculptural.  The calcites are simple rhombs with white flattened rhombs as overgrowths on the larger first generation crystals.  They coat the backside of the specimen almost entirely and cap the front view as well as creeping down one side of the front display piece.  Aesthetic!!  The attachment to the matrix is all on the bottom on which the specimen sits nicely for display.  The only damage is a small chipped area to a couple calcites on the top...without magnification the spot looks like the second generation calcite crystals!  Great piece!  P.O.R.









OKM-150     Pyrite     Navajun, La Rioja, Spain.    Ex. Harold L. Dibble collection.  This one is a really big handful.  The cubes are up to 3.7 cm each (on edge) and the cluster measures 11.2 x 8.5 x 8.3 cm.  Very large for a free cluster from this location.  One tiny corner chip and a couple spots with some minor edge marks...nothing at all serious for a specimen of this size from Navajun.  $800









OKM-153     Arsenopyrite, Quartz, Sphalerite, Siderite      Panasqueira, Portugal.  Ex. Harold L. Dibble collection.  A large specimen for the location that measures 13 x 9 x 8 cm.  Good mix of species, all except the sphalerite are very lustrous (and the sphalerite is okay).  One quartz point is broken of otherwise clean of problems.  $400










OKM-155    Adularia    Morro Redondo, Minas Gerais Brazil.  Ex. Harold L. Dibble collection.  A huge single crystal of chalk white color.  The luster varies face to face but none are exceptionally high.  Excellent form.  Thin crack (natural) running down the center.  Two corners have cleaves but these could be displayed downward.  The unusual size and uncommonness of the material still make it a desirable specimen that displays nicely.   $325









OKM-151      Gypsum      Cave-of-Swords, Naica, Chihuahua, Mexico.  circ. 1964.  A bright white, high luster "Rams Horn" form grouping from the famous Cave- of-Swords.  This one is complex with lots of offshoots.  A moderate sized scrape on edge of largest horn (probably from collecting) is the only spot where the beautiful sugary surface crystallization is missing.  14.5 x 10.2 x 5 cm overall.  Blue mineral tac on back needs removal.  It is still soft so it should not be too difficult.  A rare find to have one of this size and quality.  $1,700



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