April 2017 Update

 

 

OKO-725

Top down view

OKO-725      Calcite     Potasi Mine, Franciso Potillo, Santa Eulalia District, Mun de Aquiles Serdan, Chihuahua, Mexico.  Ex. Harold L. Dibble collection.  This one is a real looker.  It measures 13.7 x 11.5 x 8 cm overall with the larger crystals up to 2.3 cm each. There are three stalactites missing their tops.  That is it for damage, with all other surfaces and crystals being very nice.  A show example with good views all around.  $300

 

 

 

 

 

OKO-726

OKO-726       Barite       Dufton, England.  Ex. Harold L. Dibble collection.  A huge single crystal measuring 14 x 8.4 x 6.4 cm.  There is notable damage on the termination of this old timer with and a couple of obvious scratches needing some oiling, as seen.  Very translucent, actually transparent to a considerable depth.  $400

 

 

 

 

 

 

OKO-503

OKO-503    Rhodochrosite     N’Chwaning Mines, Kuruman, Kalahari Manganese Field, North Cape Province, South Africa.  Ex. Thomas G. Fowler collection.  This example measures 2 x 1.7 x 1.1 cm overall and is composed of bright, cherry red crystals on red rhodochrosite matrix.  Damage as seen.  Still, given the damage it displays nicely and will make for an attractive reference piece in someone’s collection.  Currently mounted in a perky box.   $150

 

 

 

 

 

 

OKO-504

OKO-504    Rhodochrosite     N’Chwaning Mines, Kuruman, Kalahari Manganese Field, North Cape Province, South Africa.  Ex. Thomas G. Fowler collection.  This example is composed of larger crystals and measures 2.6 x 2 x 1.8 cm overall and is composed of bright, cherry red crystals on red rhodochrosite matrix.  Damage as seen  Still, given the damage it displays nicely and will make for an attractive reference piece in someone’s collection.  Currently mounted in a perky box.   $250

 

 

 

 

 

OKO-505

OKO-505    Rhodochrosite     N’Chwaning Mines, Kuruman, Kalahari Manganese Field, North Cape Province, South Africa.  Ex. Thomas G. Fowler collection.  This example is composed of larger crystals and measures 3 x 2.5 x 2.1 cm overall and is composed of bright, cherry red crystals on red rhodochrosite matrix.  This is an unusual piece in that I detect no damage except a small chip on the top of the piece.  It LOOKS damaged which is a problem but the surfaces are just crude in their form compared with most of the amazing material from this location or they are healed surfaces on a once damaged crystal. In either case it is attractive and unusual.  Currently mounted in a perky box.   $600

 

 

 

 

 

 

OKO-506

OKO-506    Rhodochrosite     N’Chwaning Mines, Kuruman, Kalahari Manganese Field, North Cape Province, South Africa.  Ex. Thomas G. Fowler collection.  This example is composed of larger crystals and measures 2.5 x 2 x 2 cm overall and is composed of bright, cherry red crystals on pink rhodochrosite matrix.  The crystals, two, are large with gemmy cores.  Minor scuffing as seen.  Currently mounted in a perky box.   $250

 

 

 

 

 

OKO-507

OKO-507    Rhodochrosite     N’Chwaning Mines, Kuruman, Kalahari Manganese Field, North Cape Province, South Africa.  Ex. Thomas G. Fowler collection.  This example measures 1.6 x 1.2 x 1.1 cm overall and is composed of bright, cherry red crystals on red rhodochrosite matrix.  Damage as seen.  Still, given the damage it displays nicely and will make for an attractive reference piece in someone’s collection.  Currently mounted in a perky box.   $80

 

 

 

 

 

OKO-801

OKO-801     Magnetite and Sphalerite    2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows simple cubes in beautifully formed, damage-free crystals.  Surrounding these are tiny sphalerites and second generation cubes.  Everything sparkles.  3.7 x 2 x 2 cm.  Only frontal view is crystallized.  Damage free.   $70

 

 

 

 

 

OKO-802

OKO-802     Magnetite and Sphalerite    2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows cubes in beautifully formed, damage-free crystals.  With these are clear sphalerites to .4 cm each (this is unusually large for the occurrence).  5 x 4.3 x 3.2 cm.  This is a very three-dimensional piece with many surfaces showing fine, damage free, high luster crystals.  $275

 

 

 

 

 

OKO-803

OKO-803     Magnetite and Sphalerite    2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows cubes in beautifully formed, exceptionally high luster crystals.  3.7 x 3 x 1.8 cm.  Two small chips.  Nice sphalerites in clear, white and amber colored crystals.  Very showy.  $200

 

 

 

 

 

OKO-804

OKO-804     Magnetite and Sphalerite    2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows cubes in beautifully formed, exceptionally high luster crystals. 5.8 x 3.6 x 2.6 cm.  Damage-free.  Nice sphalerites in clear, white and light raspberry colored crystals.  Very showy.  $295

 

 

 

 

 

OKO-805

OKO-805     Magnetite and Sphalerite     2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows both of the important forms (cubes with tetrahexahedral modifications to faces) in numerous beautifully formed, damage-free crystals on the front, back, and sides.  4.5 x 3.3 x 2.7 cm.  This is as fine a miniature as one could find in this material.  The sphalerites are exceptionally large (.6 cm) and lustrous.  Sits nicely.  Perfection!  $600

 

 

 

 

 

OKO-806

OKO-806     Magnetite and Spalerite     2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York.  Ex. Chuck Bowman, Z.C.A. miner and collector of specimen.  Rare, well documented, and important material that is unique to the mineralogical world.  It also ranks among the best known for the species.  This example shows cubes in numerous beautifully formed, damage-free crystals that are mostly positioned on one side of the piece.  5.6 x 2.6 x 2 cm.  The sphalerites are minor and mostly on the bottom and back.  Back is partially crystallized, too.  No damage.  $100

 

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