July 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. 

 

 

 

OKN-109

OKN-109     Cerussite    Tsumeb Mine, Tsumeb, Namibia.  Ex. Harold L. Dibble collection.  4.4 x 3 x .9 cm specimen is a partial crystal... the edge of a reticulated twinned crystal.  Edge contact with no central damage.  $95

 

 

 

 

 

OKN-110

OKN-110    Dioptase    Tsumeb Mine, Tsumeb, Namibia.  Ex. Harold L. Dibble collection.  A beautiful miniature measuring 4.5 x 3.3 x 2.5 cm.  Large crystals to 1.6 cm each of the very high luster and nice translucence expected of this material.  Front center has a couple chipped crystals and back as well.  All the big crystals along the top are complete and very nice. so even with the damage mentioned it is a specimen worth having.  Mounted on an acrylic base.  $375

 

 

 

 

 

OKN-112

OKN-112     Siderite (Spinel Law Twin)      Mont. St. Hilaire, Quebec, Canada.  Ex. Harold L. Dibble collection.  This is a damage free floater measuring 3.7 x 2.8 x 1.2 cm overall.  I'm not sure if the surface is coated by epitactic dolomites or if these are growth hillocks.  In either case this is a desirable MSH specimen from years gone by.  The price on this one is excellent as are all its other attributes.  The accessory mineral looks to be albite.  $120

 

 

 

 

 

OKN-115

Back or bottom

OKN-115     Smithsonite    Hayden, Arizona.  Ex. Harold L. Dibble collection.  6.5 x 3.5 x 3.4 cm with front side being all blue.  Only a minor scuff which is not as bad as the image indicates.  Back is clear to green to blue but not as heavily coated and showing bladed growth.  $60

 

 

 

 

 

 

OKN-331

OKN-331     Tourmaline     "Cityscape Pocket", Himalaya Mine, Gem Hill, Mesa Grande District, San Diego County, California, circ. 1980s.  Ex. Harold L. Dibble collection.  5.4 x 4.4 x 3.2 cm.  Front side is open showing pink, fibrous core while the back is coated by white (albite)?  The only damage is to the green base which is chipped along part of its length as seen.  Nice specimen.  $250

 

 

 

 

 

 

OKM-163

OKM-163    Azurite     Touissit, Touissit District, Oriental Region, Morocco.  Ex. Harold L. Dibble collection.  Nice translucent, deep blue, double terminated crystals to 2.6 cm each compose this attractive cluster.  Two small contacts otherwise a floater with some healed terminations but most being nicely terminated.  3.1 x 3.2 x 1.8 cm.  Good quality azurite for any world-wide location.  Exceptionally nice for Morocco.  $400

 

 

 

 

 

 

OKN-332

OKN-332     Topaz     Ouro Prito, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A nice "Imperial" topaz measuring 3 x 1.5 x 1.1 cm.  Vibrant color and the highest of lusters.  Very tiny tip ding can be seen in first image.  Los of transparency with internal fractures.  $225

 

 

 

 

 

OKM-211

OKM-211    Gypsum     Nanton, Alberta, Canada.  Ex. Harold L. Dibble collection.  A nice double terminated crystal with only a couple very tiny rub marks.  Excellent form, clarity, and luster.  3 x 3.2 x 1.6 cm.  Good piece.  $35.

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