Namibian Mineral Specimens

 

Impressive blue aquamarine crystals from somewhere other that Pakistan. These are aesthetic, gemmy, high luster mineral specimens both on and off matrix from the Erongo Mountains of Namibia.        Aquamarines form Erongo Mountain, Namibia

 

OKF-379

OKF-379    Cerussite    Tsumeb, SW Africa.  Ex Anthony P. Dunn collection. Most of this beautifully formed sixling twin is present on a small piece of matrix.  The specimen stands up beautifully for display and measures 5.7 x 5 x 3.4 cm over.  The crystal exhibits a medium to high luster has zero damage.  The cerussite is translucent to gemmy and wonderfully form.  An excellent specimen which is better in person.  $650

 

 

 

 

 

OKF-360

OKF-360    Dioptase and Plancheite     Omaue Mine, Kaokveld, Namibia, Africa.  Ex. Anthony P. Dunn Collection.  Circ. 1975.  This brilliant specimen measures 4 x 2.2 x 2 cm and is composed of one large 2 cm dioptase crystal as well as others, with a thick over growth of plancheite.  The plancheite is of two colors: a light robin egg blue and a light sky blue.  Crystals are damage free in this highly desirable specimen.  $300

 

 

 

 

OKF-358

OKF-358     Dioptase    Omaue Mine, Kaokveld, Namibia, Africa.  Ex. Anthony P. Dunn Collection.  Circ. 1975.  This beautiful plate of crystals measures 3.5 x 2.2 x 1.5 is dominated by one large two centimeter crystal.  There are very tiny crystals of calcite which are encrusted in some areas of piece and can be seen as inclusions within some of the crystals.  Great views from front and sides but the photographs make it look rather average.  The inclusions are wonderful!  Back and bottom are contact areas.  Very nice damage free piece.  $190

 

 

 

 

OKF-353

OKF-353    Cerussite Twin   (with liquid and gas inclusion)    Tsumeb Mine, Oshikoto Region, Namibia, Africa.  Ex. Anthony P. Dunn Collection.  Circ. 1975.  This piece is composed of a pair of parallel growth twins measuring 4.1 x 4.1 x 2.2 cm.  The largest crystal has several inclusions, one of which has a small movable gas bubble which is only visible with magnification.  There are tip dings on two of the terminations which has led to a dramatic reduction in price on the specimen.  Still a desirable piece which is interesting and displayable.   $150

 

 

 

 

 

OKF-189

Unusual surface texture

OKF-189    Chalcotrichite including Calcite    Onganja, S.W. Africa.  Ex Nancy Collins collection.  These nice calcites have extremely unusual surface growth features which may be difficult to see in the photographs.  Blood red inclusions add to the dramatics of this piece.  3.3 x 2.6 x 2 cm with the largest calcite being 2.7 cm.  $135

 

 

 

 

OKF-166

Close up

OKF-166    Smithsonite    Berg Aukas, S.W. Africa.    Ex.  Nancy Collins collection.  This damage free plate of crystals measures 4 x 3.8 x 1.8 cm.  One side is richly coated with a layer of cream colored smithsonite crystals.  One tiny yellow smithsonite can be seen sitting in the middle of the plate.  An excellent specimen.  $75

 

 

 

 

OKF-167

OKF-167    Dioptase     Tsumeb, S.W. Africa.    Ex.  Nancy Collins collection.  He gemmy 1 cm dioptase crystal sets within a calcite matrix and is impeccably formed, highly lustrous and gemmy with moderate internal inclusions.  It sits up high off the matrix and is very displayable.  Entire specimen measures 3 x 2 x 2.2 cm.  There is minor Styrofoam to be removed from the base of the specimen.  $95

 

 

 

 

 

 

OKF-219

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OKF-219    Smithsonite   Tsumeb, S. W. Africa.  Ex Nancy Collins collection.  Previously a Prosper Williams piece(with tag).  A perfect little dome of translucent brown smithsonite crystals to over a centimeter each.  The back of the specimen has the crystals all intergrown whereas the front displays some matrix showing through and better crystal separation.  The piece its wonderfully, has no damage, displays great luster, and is composed of large, well shaped, striated crystals.  An exceptional Tsumeb specimen.  $340

 

 

 

 

 

OKF-165

OKF-165    Dioptase, Calcite and Duftite    Tsumeb, S.W.  Africa Ex.  Nancy Collins collection.   Bright green gem dioptase crystals 2.9 cm coat both sides of the specimen.  It measures 4.5 x 4.2 x 3.4 cm.  There are several small areas of contact with matrix and only a couple very minor rubs for damage.  This an excellent display specimen.  $290

 

 

 

 

OKE-400

OKE-400    Willemite on Calcite    Tsumeb S. W. Africa.  Ex. Nancy Collins Collection.  Gem greenish blue crystal of willemite sits nicely within bed of white calcites.  A fine color contrast for this attractive al be it small gem.  2.1 x 1.5 x .6 cm.  125$

 

 

 

 

OKE-401

OKE-401    Cuprite    Onganja, S. W. Africa.  Ex Nancy Collins Collection.  This fine piece is a gemmy crystals which shows its rich red color especially well if backlit.  Excellent front and side views.  Back is only so-so.  No damage or visible contacts.  Minor adhesive on base.  225$

 

 

 

 

 

OKE-305

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OKD-305    Dioptase   Tsumeb, S. W. Africa.   RESERVED   Ex. Nancy Collins Collection.  Add some flash to your mineral display…this brilliant green specimen is composed of sharply formed crystals to .7 cm each.  They are intergrown and form waves crystals thickly coating the majority of the piece.  There is only one small contact area which makes this specimen almost stalactitic in form.  Zero damage even under magnification.  6.8 x 3.5 x 3 cm overall.  Outstanding specimen.  280$

 

 

 

OKD-385

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OKD-385    Smithsonite    Tsumeb, S.W. Africa. Ex Nancy Collins Collection.  Beautiful pink color to these smithsonite rhombs.  The piece is dome shaped and measures 4 x 3.2 x 2.5 cm.  No Damage. The crystals are translucent and measure up to 1.3 cm on edge.  225$

 

 

 

 

OKD-386

OKD-386    Smithsonite    Tsumeb, S.W. Africa. Ex Nancy Collins Collection.  Beautiful pink color to these smithsonite rhombs.  The piece is a partial vug with crystals to .8 cm each.  There is a tiny pair of bright yellow crystals on the smithsonites which are unknowns.   No Damage. The piece measures 4.4 x 3.2 x 2 cm.  

 

 

 

 

OKD-387

OKD-387    Smithsonite    Tsumeb, S.W. Africa. Ex Nancy Collins Collection.  Beautiful pink color to these smithsonites.  The piece is dome shaped and measures 2.6 x 1.8 x 1.4 cm.  No Damage. The crystals are translucent schalenohedrons.  40$

 

 

 

 

 

OKF-158

OKF-158    Smithsonite    Tsumeb,S.W. Africa.  Nancy Collins Collection.  This toenail size specimen measures 3.3 x 2.3 x 2.2 cm in size.  The display face has green colored smithsonite crystals to .7 cm which are spaced out nicely on an unknown white mineral.  They are gemmy crystals of very high luster and good form.  The piece its well for display in the color is truly eye-catching.  $95

 

 

 

OKF-149

OKF-149    Acroite    Swakopmund, S.W. Africa.  Ex. Nancy Collins Collection.  The small cabin specimen displays a 2.2 cm long acroite crystal lightly embedded in a tan colored rock matrix.  The tourmaline grades from a very light green to clear it is totally gemmy throughout.  The termination is not complete on the end where the crystal is clear.  This and most of once been embedded in matrix and was subsequently chipped.  The piece does not appear repaired because the crystal’s green section is well embedded in the matrix.  7.7 x 4.4 x 3.5 cm overall.  The photo shows the tourmaline to be darker than it really is.  It IS clear for much of the crystal’s length.  Very desirable and rare tourmaline.  $310

 

 

 

 

OKF-126

OKF-126    Descloizite    Tsumeb, S.W. Africa.  Ex. Nancy Collins Collection.  This specimen is 6 x 4.5 x 3.4 cm and is a complete floater would know visible points of attachment.  The color is the deep rich brownish red and the crystals are very high in luster.  There are a few crystals missing but the specimen still as good aesthetics and displays nicely.  100$

 

 

 

 

OKE-332

OKE-332    Primary Malachite on Quartz Stalactite    Ongonja, S. W. Africa.  Ex. Nancy Collins Collection.  Magnificent sprays of vibrant green malachite on white stalactites of quartz.  A couple stalactites are damaged from specimen removal but the malachite is in fine form.  Great color and contrast to this specimen.  6.2 x 4.5 x 3.2 cm.  390$

 

 

 

 

OKF-124

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OKF-124    Malachite on Calcite    RESERVED   Tsumeb, S. W. Africa.  Ex. Nancy Collins Collection.  The bright green malachite here has formed coatings on the underlying reddish brown calcites.  Both minerals show great luster and the form is super.  There are stacks of tiny calcite rhombs creating a very three dimensional effect which is accentuated by the overlying malachite.  The piece measures 4.8 x 3.3 x 2 cm.  One face is more thickly coated by the malachite while the opposite allows for more of the calcite to be viewed.  The specimen is a floater with no damage.  Great specimen!  160$

 

 

 

 

OKF-089

OKF-089    Cuprite    Tsumeb, Namibia.  Ex. Dr. Steve Chamberlain Collection.  A fantastic 2.3 cm cluster of gray crystals with fine luster and form.  The specimen displays great from all sides being damage free.  There is a small basil contact which has some Styrofoam attached which I’m not going to scrape off.  A showy classic.  220$

 

 

 

 

OKF-081

Back...dull red color

OKF-081    Cuprite and Malachite    Tsumeb, Namibia.  Ex. Dr. Steven Chamberlain collection.  Prev. Joe Politika Collection, Prev. Ward’s.  This desirable piece is a small floater cluster of crystals of cuprite to 1.3 cm each.  The piece measures 2 x 2 x 1.5 cm overall and is composed of sharply formed, lustrous crystals.  There is a fine coating of malachite on some areas of the specimen.  The cuprites are a deep rich red and only slightly translucent.  A fine specimen from a now classic location.  150$

 

 

 

 

 

OKF-036

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OKF-036    Smithsonite    Tsumeb, Namibia, Africa.  Ex. Jim Turek Collection.  This is almost a floater specimen (minor contact on one corner and a small section of back).  5.5 x 5.2 x 2.1 cm with crystals to .7 cm each.  Many penetration twins on this branching cluster.  Nice translucence to transparency to the crystals.  A top quality specimen.  340$

 

 

 

 

 

OKD-755

OKD-755     Manganoan Smithsonite     46 Level, Tsumeb, Namibia, Africa.  Ex. Jim Turek Collection.  3.6 x 2.8 x 2.8 cm piece with a nice grouping of crystals to .6 cm each on edge.  A minor cleave on one crystal and rub on another.  Still a nice piece.  100$

 

 

 

 

OKD-337

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This photo is closest to the true color.

OKD-377   Cerussite on Malachite after Azurite    Tsumeb, S.W. Africa.  Ex. Nancy Collins Collection.   This is arguably the most valuable piece in Nancy’s collection.  It is a massive plate of malachite crystals to 5 cm each.  In its entirety it measures 18 x 17 x 6 cm.  In this we find approximately 60 to 70 twinned cerussite crystal to 1.7 cm each.  They are well formed, have a medium luster and stand up high off the matrix. It looks like six more crystals should be on this piece but they have been cleaved off leaving a smooth contact where they once were.  Even with this damage, which does not draw your attention, the specimen is a killer and a classic.  I have seen specimens one quarter of the size of this one with no cerussite command many thousands of dollars.  This one is far superior to any similar specimens that I have seen for sale over the years.  A one of a kind that should get center stage even in the most serious Tsumeb collection.  13,000$

 

 

 

 

 

 

OKD-365

OKD-365    Fluorite   Tsumcorp Mine, Tsumeb, Otjikoto Region, Namibia, S.W. Africa.  Ex. Nancy Collins Collection.   Circ. 1970.   A nice large plate of gree crystals to 2.2 cm on edge.  The specimen measures 14 x 10 cm and is up to 4.5 cm thick.  Beautiful blue phantoms and some incusions of a unknown mineral (maybe siderite).  One ding on a single cube, otherwise clean.  A fine classic…1,495$

 

 

 

 

 

OKD-338

OKD-338    Descloizite    Tsumeb, S.W. Africa.   Ex. Nancy Collins Collection.    Large sprays of rich translucent brown, high luster bladed descloizite crystals.  Sits nicely for display.  5 x 4 x 3.5 overall.  Attractive piece from a classic locality.  160$

 

 

 

 

 

OKD-325

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OKD-325   Azurite   Tsumeb, S.W. Africa .  Ex. Nancy Collins Collection.   Deep blue high luster grouping of azurite crystals in an aesthetic display.  One large crystal is missing in this fine group.  Still a very displayable piece with lots of character.  Main crystal is 4 cm while the entire piece measures 5 x 3 x 1.7 cm.   950$

 

 

 

 

 

OKD-148

OKD-148    Cerussite   Tsumeb, Namibia.  Ex. Dr. Steve Chamberlain Collection.  3.2 cm single crystal of cerussite which is white to clear and transluscent to gemmy.  Nice luster, clean of damage and heavy.  Another good piece from a classic location.  40$

 

 

 

 

 

 

OKD-136

OKD-136    Cerussite   Tsumeb, South West Africa.  Ex. Dr. Steve Chamberlain Collection.  Cerussite crystals to 4 plus cm each intergrown with an unidentified black acicular mineral.  4.5 x 3.5 x 2.5 overall.  Smaller cerussites are gem clear.  Some contacts.  Classic material.  85$

 

 

 

 

OKD-064

OKD-064    Fluorite   Okorusu, Namibia, Africa.  Green fluorite cubes with purple corner phantoms.  Very unusual form of phantom for fluorites.  Attractive, thin, 8 x 7 cm plate is easy to see through. No Damage.  Sawn flat on backside.  60$

 

 

 

 

 

OKB-656

Close-up.

OKB-656    Cerussite   Tsumeb, South West Africa.   Ex. Dr. Chamberlain Collection.    Nice cluster of gemmy crystals with largest being over 4 cm.  Minor matrix with most crystals being singly terminated.  Excellent luster and fair to good form.  65$

 

 

 

 

 

 

OKB-557

OKB-557   Fluorite  Okoruse Mine, Namibia.    Superior green cubes with purple and blue highlights and zero damage.  Great form to this 8 x 7 cm domed specimen.  Cubes to 1.5 cm.  Far better than photos indicate.  100$

 

 

 

 

 

 

 

OKB-558