Custom engraved acrylic base.

OKI-740     Cerussite Twins on Malachite after Azurite    Tsumcorp Mine, Tsumeb, Otikoyo Region, Namibia, Africa.  Ex. Nancy Collins Collection circ. 1970.  This fine specimen measures 6.5 x 6 x 4.8 cm overall and is composed of numerous twinned and untwined cerussites on a lush carpet of forest green malachite pseudomorphs after azurite.  The largest twin is 1.7 cm on edge.  The malachite pseudo are present in two generations: the first generation crystals are large, followed by the second generation, much smaller, deeper green pseudos which coat some of the surfaces of the first generation crystals.  On this matrix there is a large centrally placed twin with good symmetry and luster.  In addition are several small reticulated twins on the periphery.  They all stand off the malachite in high relief.  The cerussites are very translucent and have a waxy to silky luster.  There is no damage to the primary display face although some of the edge contacts are visible on the sides of the piece.  The backside has some mineralization, as well.  The specimens of malachite after azurite from this mine are known world over as classics.  I’ve sold and seen many dozens of these malachites after azurite, but the several of these I now have for sale are the only ones I’ve known of in combination with the cerussites.  Comes with a custom engraved acrylic base. Rare and desirable.  $2,200

OKI-742

OKI-742     Cerussite Twins on Malachite after Azurite    Tsumcorp Mine, Tsumeb, Otikoyo Region, Namibia, Africa.  Ex. Nancy Collins Collection circ. 1970.  This fine specimen measures 4 x 3.1 x 2.9 cm overall and is composed of several twinned and untwined cerussites on a lush carpet of forest green malachite pseudomorphs after azurite.  The malachite pseudo are present in two generations: the first generation crystals are large, to 2 cm each, and followed by the second generation, much smaller, deeper green pseudos which coat about 20 % of the surfaces of the first generation crystals.  On this matrix can be found twinned cerussites to 1.4 cm.  There is no damage to this specimen.  The specimens of malachite after azurite from this mine are known world over as classics.  I’ve sold and seen many dozens of these malachites after azurite, but the several of these I now have for sale are the only ones I’ve known of in combination with the cerussites.  $800

 

 

 

 

 

OKI-586

OKI-586     Aquamarine     Minas Gerais, Brazil.  Ex. Nancy Collins Collection.  Gemmy and a very light greenish blue color.  The crystal is all gem and measures approx. 1.7 x 1.4 x .9 cm.  It has complex form and minor quartz crystal riders.  Some damage to the tiny quartz and a small chip on lower part of termination on back 1 to 2 millimeters in size).  Attractive and very display worthy.  100$

 

 

 

 

 

OKI-570

OKI-570     Vesuvianite     Jeffrey Mine, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  A big, stocky TN specimen with the highest of luster and a vibrant green color.  3.4 x 2.4 x 2 cm overall the crystal sits well on edge for display.  The top termination is glassy and gemmy.  There is no damage but there are minor base contacts and a small one on the small rider crystal.  I’m being picky because this is a really well crystallized piece which displays great from any side including the back.  Exceptional and large TN.  195$

 

 

 

 

 

OKI-582

OKI-582     Vesuvianite     RESERVED     Jeffrey Mine, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George and Susan Robinson Collection #  137  Killer, killer, killer, vesuvianite specimen.  Fine provenance, impeccable form, high luster, mixed colors…I could go on and on about this specimen.  1.9 x 1.6 x 1.4 cm in size but it seems so much bigger.  The body of the crystal is green and gemmier than most while the termination is a rich purple and complex in form.  The luster is very glassy and there are interesting growth features on the termination which are easy to see.  Exceptional.  300$

 

 

 

 

 

OKI-548

OKI-548     Imperial Topaz.    Dom Bosco, minas Greais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Cleaved flat base to this 1.8 x .9 x .7 cm specimen.  All gem.  Tiny ding on back of termination and back of prism.  Still outstanding.  Rare material.  95$

 

 

 

 

 

OKI-542

OKI-542    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson and exhibited at Burlington show, 2000.  A simply huge crystal which measures 3 cm on edge or 3.6 cm diagonally.  What is here is complete with only two very tiny chips (less than a millimeter each) on the back.  Amazing impact for a TN specimen.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals.  An important specimen in need of a place in a top TN collection.    550$

 

 

 

 

 

OKI-550

OKI-550    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson.  This is my favorite specimen of this bunch of wulfenites.  A 1.2 cm gem crystal sits up high off the matrix and couldn’t possibly display any better than this.  There is a pin head sized mark (visible with magnification) which does not draw any attention.  Amazing impact for a TN specimen.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals.  Overall size of the piece is 2.5 x 2.4 x 1.9 cm.  An important specimen in need of a place in a top TN collection.    495$

 

 

 

 

 

OKI-552

OKI-552    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson.  A 2.2 x 1.8 translucent crystal which shows zoned growth.  There are two pin head sized mark (visible with magnification, one on back) which do not draw any attention.  Amazing impact for a TN specimen.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals.  An important specimen in need of a place in a top TN collection.    275$

 

 

 

 

 

OKI-551

OKI-551    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson.  This is my favorite specimen of this bunch of wulfenites.  A 1.4 x 1.3 cm floater tab with no damage and minor zoned growth visible.  Nicely striated on edges.  Amazing impact for a TN specimen.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals. Nice piece.  225$

 

 

 

 

 

OKI-559

OKI-559    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson.  A 1.6 cm tab which is rather thick.  No damage.  Strong edge contact with matrix, yet still quite nice.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals. Nice piece.  225$

 

 

 

 

 

OKI-608

OKI-608    Wulfenite    Sierra de los Lamentos, Chihuahua, Mexico.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George Robinson. This specimen is a floater composed of two crossing crystals of decent size yet poor form.  Heavily included but both are complete.  No damage or matrix contacts.  2.8 x 2.5 x 2.4 cm overall.  From one of the most important North American mineralogical discoveries ever, written about in numerous books and periodicals. Nice piece.  225$

 

 

 

 

 

OKI-588

OKI-588    Grossular     Jeffrey Quarry, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection, prev. Dr. George and Susan Robinson collection and Tony Jones 2/81.  This is a substantial TN specimen which is actually a healed shard off the surface of an enormous (by Jeffrey standards) garnet crystal.  It measures 2.9 x 2 cm and is approx. .5 cm thick.  The garnet is a very light yellow and gemmy.  What appears to be inside the specimen is actually what you see on its backside (regrown faces and catalog #) because it is so transparent.  No damage floater.  A really neat find for the collector who thinks they have everything Jeffrey has to offer.  190$

 

 

 

 

 

OKI-581

OKI-581      Prehnite     Jeffrey Quarry, Asbestos, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  A first glance this might appear to be a calcite or other species.  It is a nice blocky, yellow, translucent prehnite on a small bed of acicular natrolite crystals (hard to notice in that they are clear).  The crystal is 1 cm on edge and the piece 2.1 x 1.9 x 1.6 cm overall.  It displays nicely and is mounted in a perky box on an acrylic plate.  Nice satin luster, fine form and it sits up high off the matrix.  No damage.  Quite unusual.  130$

 

 

 

 

 

OKI-553
Back view

OKI-553     Buergerite    Mexquitic, San Luis Potosi, Mexico.  Ex. Dr. Steve Chamberlain Collection.  This 2.6 x 2 x 1.5 cm specimen has two nice crystals to 17 cm each.  They are well formed and opaque with high lusters.  Minor crystal contacts on backsides of crystals.  Frontal views are damage free and appealing.  Crystals are embedded in what appears to be a salmon colored chert.  85$

 

 

 

 

 

OKI-587
	Bottom

OKI-587    Weloganite and Quartz     Upper Sill (alcove), Francon Quarry, Montreal, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  This piece is a fine TN specimen composed of several intergrow, vertically standing weloganite crystals to 1.6 cm each.  The piece measures 2 x 1.6 x 1 cm.  The cores are bright yellow but all surfaces are evenly coated by white franconite.  There are dozens of tiny smoky quartz crystals intergrown on the surfaces of the weloganites.  No damage and only base contact.  Excellent for for this rare mineral species.  160$. 

 

 

 

 

OKI-468

OKI-468    Acanthite and Silver     Huang Tong Xiang Mine, Town of Lu Jiang, Anhui Prov., China.  In this example the acanthite crystal is a single floater with some cavernous regions.  It is tabular in form and has slightly curved faces.  The silver wires are attached as a single small compact grouping.  The specimen measures 2.1 x 2.3 x .5 cm and is very displayable.  No damage.  I would highly recommend this fine TN specimen.  100$

 

 

 

 

 

OKI-469

OKI-469    Acanthite and Silver     Huang Tong Xiang Mine, Town of Lu Jiang, Anhui Prov., China.  In this example the specimen is a branching floater with silver wires attached in numerous places.  Great views all around.  One tiny piece of attached matrix.  The specimen measures 2.9 x 2.4 x 1.5 cm and is very displayable.  No damage.  I would highly recommend this fine TN specimen, also.  100$

 

 

 

 

 

OKI-470

OKI-470    Acanthite     Huang Tong Xiang Mine, Town of Lu Jiang, Anhui Prov., China.  In this example the acanthite is a very large, somewhat cavernous crystal with a small rider crystal.  The rider is damaged and there is a tiny attachment spot on the opposite end, too.  The specimen measures 3 x 2.3 x 1.4 cm and is very displayable if damaged is positioned to back.  80$

 

 

 

 

 

OKI-471

OKI-471     Catapleiite    De-Mix Quarry, Mt. St-Hilaire, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  There are two specimen in this TN box both being well formed, high luster blades of catapleiite.  They measure 1.7 and 2.4 cm each and have base and side contacts from other crystals.  The surfaces are slightly irridecent and the terminations very clean.  No damage.  100$ for the pair

 

 

 

 

 

OKI-472

OKI-472    Uraninite and Fluorapatite     Payne Property, Gatineau Park, Hull, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  Not big but very rare and a beautiful example…this small octahedron measures 1 cm on edge.  It is a greenish gray color and has numerous tiny, double terminated, brown fluorapatite crystals attached to one side.  This uncommon locality piece would be a real find for the collector of radioactive specimens.  Zero damage floater!  Very nice.  150$

 

 

 

 

 

OKI-473

OKI-473    Fluorapatite on Cleavelandite and Tourmaline   Itatiaia, Minas Gerais, Brazil.  Ex. Nancy Collins collection.  An attractive display with a tiny (.7 cm wide) dark pink, tabular apatite standing up high off of platy feldspar.  There is a green tourmaline which shoots up through the middle of the specimen terminating behind the apatite.  2.2 x 1.5 x 1 cm overall and nicely mounted.  140$

 

 

 

 

 

OKI-474

OKI-474     Weloganite     Upper Sill (alcove), Francon Quarry, Montreal, Quebec, Canada.  Ex. Dr. Steve Chamberlain Collection.  Type locality specimen in a nice example.  The crystal sits on a small piece of matrix and is in the classic “hour glass” shape.  It measures 1.3 cm long and is double terminated.  The lower termination does have matrix contact.  Translucent and yellow in color with substantial overgrowths of what is likely franconite.  1.6 x 1 x .8 cm overall.  100$

 

 

 

 

 

OKI-475

OKI-475    Quartz      Rt.# 55 Road cut, near Windsor, Quebec, Canada.  Ex Dr. Steve Chamberlain collection.  These are the finest examples of alpine quartz which Canada has to offer and it remains the only documented alpine occurrence in the country.  This fine example measures 3.1 x 2.7 x 1.5 cm with one exceptionally large crystal measuring approx. 2.8 cm long.  The cluster is a very sharp with only a single tiny area of matrix with contact and only one small crystal missing, all on back.  The specimen is marked as a gwindel but I am not sure of that.  The majority of the crystals are stacked and double terminated.  A very fine example.  180$

 

 

 

 

 

OKI-639

OKI-639     Descloizite    Berg Aukas, Grootfontein, Namibia.  Ex Dr. Steve Chamberlain collection.  This fine little branching specimen is of very high luster, impeccable form and only has on small crystal broken off, flush with the largest crystal on its backside.  Largest crystal is 2.4 and small branch is 1.5 cm.  Good piece.  50$

 

 

 

 

 

OKI-640

OKI-640     Descloizite    Berg Aukas, Grootfontein, Namibia.  Ex Dr. Steve Chamberlain collection.  This outstanding branching specimen is of very high luster, impeccable form.  Zero damage and everything is wonderfully terminated except, of course, the tiny base contact.  3.2 x 2 x 1.5 overall.  Impressive example which is very showy.  95$

 

 

 

 

 

OKI-478

OKI-478     Almandine     Ampandramaika, Madagascar.  Ex Dr. Steve Chamberlain collection.  A slightly tabular floater crystal measuring 2.7 x 2 x 1.5 cm.  A couple very tiny marks…as close to damage free as I have ever seen one of these.  Deep red color and good luster.  Very nice.  80$

 

 

 

 

 

OKI-479

OKI-479     Almandine     Ampandramaika, Madagascar.  Ex Dr. Steve Chamberlain collection.  A slightly tabular floater crystal measuring 2.5 x 2.2x 1.8 cm.  A couple very tiny marks and one small crystal contact that looks more like striations than a contact.  Deep red color and good luster.  Nice. I chopped the price in half given the trivial damage.  40$

 

 

 

 

 

OKI-480

OKI-480    Dioptase    Tsumeb Mine, Tsumeb, Ojtikoto Region, Namibia.  Ex Dr. Steve Chamberlain collection.  An attractive specimen with tiny crystals on white matrix.  Crystals are will differentiated and show up better than on the normal tan colored matrix rock from this mine.  3.1 x 2.7 x 1.3 cm.  No damage and showy.  Well priced for a damage free specimen of this material.  95$

 

 

 

 

 

OKI-481

OKI-481    Cuprite     Tsumeb SW Africa.  Ex Nancy Collins collection.  1.5 cm red crystal with a tiny (micro) chip on matrix of minor calcite and azurite.  Approx. 1.8 x 1.5 x .6 cm and mounted in a perky box.  Good piece which should probably be removed from box mounting, cleaned of Styrofoam and remounted.  A gift at 40$

 

 

 

 

 

OKI-482

OKI-482     Rutile    Somabula, Zimbabwe.  Ex Dr. Steve Chamberlain collection.   A 1.2 cm, complete crystal mounted in a perky box.  The luster is low but the form is nice.  Another unusual locale.  25$

 

 

 

 

 

 

OKI-654

OKI-654      Scheelite     Tong Wha, Chungju, South Korea.  Ex Dr. Steve Chamberlain collection. Circ. 1976.  A pair of intergrown scheelite crystals which are steel gray in color which their final layer, which does not cover all parts of the crystal, being a transparent tan color.  Well formed with minor calcite crystals on backside.  3 x 2.5 x 1.7 and mounted in a perky box.  Zero damage.  Nicely priced at… 80$

 

 

 

 

 

OKI-652

OKI-652     Azurite     Sidi Ayed, Atlas Mountains, Morocco.  Ex Dr. Steve Chamberlain collection.   A beautiful little, damage free floater.  Yes, double terminated!  1.8 x 1.3 x .9 cm overall.  The specimen is a grouping of crystals, although it is dominated by one large one.  Top blue color (photos don't show this well), fine form, outstanding luster.  Excellent specimen.  80$

 

 

 

 

 

OKI-650

OKI-650     Vanadinite    Morocco, Africa.  Ex Dr. Steve Chamberlain collection.   A nice little cluster with large crystals to 1.3 cm each.  Only a micro rub on a lower section of one crystal.  Minor matrix.  Great luster and cherry red color, backsides of crystals have minor coatings reducing the luster.  2.4 x 1.8 x 1.4 cm overall.  Very respectable example.   50$

 

 

 

 

 

 

OKI-658

OKI-658     Malachite pseudomorphs after Azurite     Sidi Ayed, Atlas Mountains, Morocco.  Ex Dr. Steve Chamberlain collection.   A large example measuring 3 x 2 x 1.7 cm.  There is base and back contact with clean views from the front and sides and top.  No damage.  Some rich blue, high luster azurite shows through but primary views show the nice green malachite, for the most part.  Very reasonably priced for this material at….80$

 

 

 

 

 

OKI-659

OKI-659     Azurite     Sidi Ayed, Atlas Mountains, Morocco.  Ex Dr. Steve Chamberlain collection.   An attractive specimen with bright blue, high luster crystals to 1.6 cm on edge.  The main crystal is double terminated and the specimen is on a small section of matrix.  Only one small edge contact.  Very respectable and aesthetic.  2.2 x 2.2 x 1.5 cm with no damage.  Great piece for the price.  125$

 

 

 

 

 

OKI-657

OKI-657     Vanadinite    Morocco, Africa.  Ex Dr. Steve Chamberlain collection.  Huge 2.5 cm,  tabular, single crystal mounted in a perky box.  Front is nice with several small riders attached and back has overgrowths reducing the luster and is hoppered.  Excellent!  35$

 

 

 

 

 

OKI-655

OKI-655     Elbaite     Karibib District, Erongo Region, Namibia, Africa.  Ex Dr. Steve Chamberlain collection.   A gorgeous 3.5 cm gem crystal with unusually steep terminal faces.  Minimal striations, a nice, even green color.  It is nice to be able to offer an undamaged, gem crystal of this size for a low price!  40$

 

 

 

 

 

OKI-656

OKI-656    Erythrite    Morocco, Africa.  Ex Dr. Steve Chamberlain collection.   Purple red color to this seam containing partially formed crystals.  2.5 x 1.3 x 1.2 overall.  20$

 

 

 

 

 

OKI-638

OKI-638     Beryl (var. Aquamarine)    Skardu, Kashmir, Pakistan.  Ex Dr. Steve Chamberlain collection.   3.4 cm by .7 cm thick crystal with lots of region that is gem.  Complex and fully formed termination.  Very minor mica at base.  No damage and attractive.  60$

 

 

 

 

 

OKI-641

OKI-641     Bornonite     Quiruvilea Mine, Peru.  An exceptional crystal of this uncommon material.  The specimen is dominated by one large crystal standing up on several smaller ones.  It appears to be a floater but is mounted in a perky box so it is impossible to tell without removal.  The luster is as good as it gets for this species and the crystal is hoppered.  The piece measures approx. 1.8 x 1.5 x .7 cm.   Zero damage and a superior TN specimen for this locality.  180$

 

 

 

 

 

OKI-642

OKI-642     Chalcocite     Niskgoaro, Cornwall, England.  Ex. Nancy Collins Collection.  A small specimen but in unbelievable form.  The cluster looks like a black pyromorphite!  Approx. 1.3 x 1.3 x 1.3 cm.  It appears to be a floater but is mounted in a perky box so it is impossible to tell without removal.  No damage and a classic by anyone’s standards.  245$

 

 

 

 

 

OKI-484

OKI-484     Scapolite    Morogoro, Uluguru, Mountains, Tanzania.  Ex Dr. Steve Chamberlain collection.   Circ. 1980.  1.4 x 1 x .6 cm overall.  Pure gem.  Nice color saturation and crystal form.  High luster.  95$

 

 

 

 

 

 

OKI-647

OKI-647     Thorianite     RESERVED    Andolobe, Madagascar.  Ex Dr. Steve Chamberlain collection.   A .7 x .6 x .4 cm crystal in a cleave of tan/ yellow calcite.  The crystal is missing part of a back edge but displays great from the front and sides.  It is slightly iridescent, radioactive, high in luster and has nice surface features.  An excellent piece.  70$

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