General Stock  Page 5 

Minerals Beginning with   "D"

	JC13236.  Danburite.  Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia   A 2 cm crystal.  $20.00.
	JC12766.  Descloizite.  Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia.  Black, sharp, lustrous crystals.   6.5 x 6 x 2 cm 134g  $95.00   I acquired this one from Hamel Mining and Minerals (Jean Hamel) in October 1972.   Although the crystals are not large, the piece is quite appealing.   Crowley Coll. #  300
	JC12766.   Close up view.
	JC11874.  Descloizite.  Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, Namibia.  3.5 x 4 cm 35g.    Ex Earl Calvert collection.  #844.  $40.00
	JC11874.  Back side.
	JC10660.  Descloizite.  Berg Aukas mine, Grootfontein, Otjozondjupa region, Namibia.  Slightly iridescent black, bladed crystals.   8 x 10 cm  266g.  $250.00.   Slightly iridescent black bladed crystals coating matrix.
	JC10660.  Closer view.
	JC10660.  Closer view yet. The iridescence can be seen on these crystals.
	JC10397.  Descloizite   Berg Aukas Mine (Berg Aukus Mine), Grootfontein, Otjozondjupa Region, Namibia.  5 x 9 cm    123g.  $70.00.   Classic specimen from Berg Aukas.  Bladed, near black to brown bladed crystals make up the piece.  There are 3 broken crystals, visible in this photo as light areas near the center top area of the piece.   Otherwise in good shape.
	JC10397.   Closer view.
	JC10213.  Descloizite.  Preguiça Mine, Sobral da Adiça, Moura, Beja, Portugal.  3 x 7.5 cm  64g  $15.00.   Partial coating of near black micro crystals.
	JC10213.  Close up view.
	JC9737.  Descloizite.  Preguica mine, Sobral de Adica, Mora, Beja district, Portugal.  3 x 5 cm  16g.  $10.00.
	JC13328.   Diopside, pyrite.  Kokcha valley, Badakhshan, Afghanistan.  7.7 x 6.5 x 3 cm 190g  $125.00.   A light green diopside crystal is center, with several smaller, partially exposed crystals.  A couple of poorly formed pyrite crystals on the back edge of the piece.  A lighter green crystal than is usually seen from here.    The piece features a sharp, well-formed, lustrous 2.5 cm crystal with a few smaller accenting Diopsides, nestled into off-white marble matrix. The main Diopside is in good condition, though there are a few imperfections that can be seen in the naked eye.  A fairly hard to find example, especially with this color.
	JC13328.  Close up.
	JC13326.  Dioptase.  N'tola mine, Mindouli, Mindouli district, Pool department, Republic of the Congo.  8 x 6 x 2.3 cm 104g  $300.00.   Fairly solid mass of crystals on matrix.  As is typical for dioptase from the N'tola mine, there is one of those shell like hollow areas on the top of the piece, shown in the photo below.  Nice for N'tola.
	JC13326.  Back side, top of the piece showing the hollow shell which is very common with N'tola specimens.
	JC13318.  Dioptase, duftite?/malachite?.  Kapata mine?,  Tantara mine? Kolwezi, Mutshatsha, Lualaba, DR Congo.   6 x 5.5 cm 90g  $40.00.  Patch of crystals on matrix.  Some somewhat yellow green mineral scattered around the crystals.  Could be either duftite or malachite.    Sawn back.
	JC13318.  Close up.
	JC13317.   Dioptase.  Kapata mine?,  Tantara mine? Kolwezi, Mutshatsha, Lualaba, DR Congo.   10 x 9 x 4 cm 286g  $135.00    Good size crystals coating a somewhat rusty matrix.  What looks like very tiny malachite crystals scattered around the dioptase.  Label did not specify which mine this came from, recently collected.   Damage to crystals around the edges, as can be seen in the photos.   Sawn back.
	JC13317.   Another view.
	JC13055.   Dioptase.   Kapata mine?,Tantara mine? Kambove territory, Haut-Katanga, DR Congo.  20 x 13 x 4.5 cm  1,586g   $1,200.00 Sawn base & back.  typical green/bluish green crystals heavily coating the face.   For those that like big cabinet specimens that are showy, this one works.  Prettier than the photo suggests.
	JC13055.  Closer view.
	JC12556.   Dioptase.  La Farola Mine, Cerro Pintado, Las Pintadas district, Tierra Amarilla, Copiapo Province, Atacama Region, Chile.  2.8 x 5.5 x 7 cm 122g  $70.00.   Matrix covered with a layer of sparkly microcrystals of dioptase.
	JC12556.  Close up.
	JC11672.  Dioptase.  Kaokoveld plateau, Kunene region, Namibia.   5 x 7.5 cm  94g.  $295.00.   Most likely from the Omaue mine.  Typical dioptase color, with good luster.  Stacked crystals for a nice arrangement.  On one side is a sort of "sun burst" arrangement of crystals.  I tried to catch that in the photo below, but it doesn't show really well in the photo.
	JC11672.   Side view.
	JC11672.  Close up of the sort of "sun burst" arrangement of crystals.
	JC10863.   Dioptase, duftite?  N'tola mine, Mindouli, Mindouli district, Pool department, Republic of the Congo.   4.5 x 8 cm  151g. $125.00    Brilliant dioptase green crystals with what appears to be a slight dusting of duftite in one area.     Sawn base.
	JC10863.  Closer view.
	JC10863.   Close up view.
	JC10650.  Dioptase, Kaokoveld plateau, Kunene region, Namibia.   3 x 5 cm   34g.  $95.00.   Cute miniature.  Difficult to photograph as the crystals tend to blend into each other in the photos.   Crystals are bright, rather gemmy, with that classic dioptase color.
	JC10650.   Another view.
	JC10650.  Another view.
	JC10548.  Dioptase.  Tsumeb mine, Tsumeb, Namibia.   4.3 x 8 cm  87g  $195. 00    Small, brilliant, gemmy, dioptase crystals on what appears to be dolomite.  Lots of sparkle.   Sawn back.
	JC10548.   Close up.
	JC13389.  Djurleite, benitoite.  Dallas Gem (Benitoite) mine.  Serpentine dome, New Idria district, San Benito county, California.   6 x 3.5 x 3 cm 48g  $15.00   A poorly formed djurleite crystal on natrolite, these are rather rare, and on the bottom of the piece is a raggedy benitoite crystal.
	JC13389.  Close up of the djurleite.
	JC13389.  The benitoite on the bottom of the piece.
	JC13389.  close up of the benitoite.
	JC12083.  Dolomite, cinnabar.  Tongren Mine, Tongren, Guizhou, China.  6 x 7 cm 102g  $35.00.  Several tiny cinnabar crystals scattered about, with one larger near the top in this view.
	JC12083.  Back side.
	JC12083.  Close up of the main cinnabar crystal.
	JC10651.  Dolomite, dioptase.  Tsumeb mine, Tsumeb, Namibia.  4.5 x 6.5 cm  160g.  $18.00.   Well defined white dolomite crystals in a shallow vug, with a small sprinkling of dioptase crystals in the upper right part of the piece.
	JC10651.  Closer view.