Zinc Corp. of America Mines Mineral Specimens,

Gouverneur, St. Lawrence County, New York For Sale

The #4 Mine, Balmat, Page 2

 

 

       

                                     All the above specimens are cubic magnetites from the 1991-92 find at the 2,500' Level in the #4 Mine                              

 

Probably the most important find for mineral collectors was the discovery of CUBIC magnetites in the Fowler ore body of the #4 mine, 1991-1992. They are the best of their kind (cubic) from anywhere in the world.  The only other previously known cubic magnetites were microscopic.  The cubic form is also accompanied by another rare magnetite form, tetrahexahedral.  Rare for this occurrence are modifications by octahedrons.  The crystals formed in a halite/talc vein that was an anomaly that had not previously, or since, been encountered.  These magnetites rank among the finest and most unique for their species from anywhere in the world.  We have been lucky to acquire specimens directly from miners who worked in the famous ore bodies, miner private collections, as well as fine example from collections we have purchased.  Some a few descriptions, of the many, written about this discovery.  There is also a book on these mines in press.

Cubic Magnetite Crystals from Balmat, New York.  The Mineralogical Record, Nov/Dec. 2010, vol. 41, no. 6, p. 527-537.  Cubic and Tetrahexahedral Magnetite Crystals from the Fowler Ore Body, Z.C.A. Mine, #4, Balmat, St. Lawrence County, New York.  Rocks and Minerals Magazine, May/June 2008, vol. 83, #3, p. 224-239.  Connoisseur's Choice: Magnetite, Z.C.A. Mine, #4, St. Lawrence County, New York.  Rocks and Minerals Magazine, May/June 2008, vol. 83, #3, p. 240-246.  The Collector's Guide to the Minerals of New York State, Chamberlain, C. and Robinson, G.  Schiffer Publishing, p. 89-94.  The History of St. Lawrence County Minerals, Matrix Magazine, vol. 6, no. 3.

 

 

 

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

 

 

 

 

 

 

OKO-795

Back

Bottom

OKO-795     Magnetite     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.  4.9 x 4.9 x 3.5 cm piece that has much of the original anhydrite it was once encased in.  The crystals are very lustrous and well formed.  Back side has a couple small contacts and front has one crystal very low on the piece (near base of the specimen) that has two tiny chipped corners.  Overall condition is excellent.  This is an aesthetic display specimen of this material.    $400

 

 

 

 

 

OKO-796

OKO-796     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 beautifully formed, damage-free crystals.  Surrounding the magnetites are tiny white/cream colored sphalerites.  4.9 x 2 x 1.4 cm.  Displays great and is damage free.  $50

 

 

 

 

 

OKO-797

OKO-796     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 beautifully formed, damage-free crystals.  This 4 x 2.8 x 1.5 cm piece is fully crystallized on all sides except the base.  It sits on this surface nicely showing damage-free crystals of a high luster on every side.  Between them are shiny sphaletrite crystals that are white to colorless.  This one is really fine in all regards.  $225

 

 

 

 

 

OKO-798

OKO-798     Magnetite and Sphalerite      RESERVED    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 beautifully formed, damage-free crystals.  The photos fail to capture how nice this piece is!  5 x 3.3 x 3 cm overall.  The piece is a floater with no damage and great crystallization on every side.  Small sphalerites are scattered throughout the clusters of magnetites.  I think it would be tough to find a flashier miniature.  $350

 

 

 

 

 

OKO-799

OKO-7969     Magnetite     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) and even has the rare octahedral modifications in beautifully formed, damage-free crystals.  The crystal's luster is exceptional and they are larger than most (up to 1.5 cm on edge).  The piece measures 4.3 x 3.3 x 2.6 cm and damage free.  .  Back and one base contact (healed).  Anhydrite accessories in a couple of areas.  Very fine example of this important material.  $380

 

 

 

 

 

OKO-800

OKO-800     Magnetite    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 beautifully formed, damage-free crystals.  The first image is the front view of this 4.9 x 3.8 x 2.5 cm piece.  The specimen shows mixed luster crystals of good size (to 1.3 cm on edge).  Crystallized on all surfaces with back showing several healed contacts.  No damage.  $275

 

 

 

 

 

 

OKO-934

OKO-934      Magnetite and Sphalerite     2,500 foot Level, Z.C.A. Mine #4, Balmat, St. Lawrence County, New York.  Ex Chuck Bowman collection.  This is a large specimen with both classic, cubic magnetites and clear to white sphalerites.  The entire specimen, with the exception of it's base, is crystallized.  Only on contact spot on front as seen which is not distracting to the overall appearance of the piece.  10 x 4.1 x 4 cm.  Blue mineral tack on bottom.  $380

 

 

 

 

 

OKO-935

OKO-935      Magnetite and Sphalerite     2,500 foot Level, Z.C.A. Mine #4, Balmat, St. Lawrence County, New York.  Ex Chuck Bowman collection.  This is a large specimen with both classic, cubic magnetites and raspberry colored sphalerites.  The front and about half of the back are crystallized.  No damage.  8.5 x 5.6 x 3.5 cm.  Stands on edge for a nice display.   Minor blue mineral tack on back.  $425

 

 

 

 

 

 

OKJ-904

Bottom

OKJ-904       Magnetite     2,500’ Level, #4 Mine, ZCA, Balmat, St. Lawrence County, New York.  Ex. Harold L. Dibble collection.  .9 x .9 x .6 cm single crystal.  Great example of this unusual material.  One micro ding on a corner.  Very tough to see so it displays damage free.  $40

 

 

 

 

 

 

OKK-862

OKK-862     Magnetite     Fowler Ore Body, 2,500’ level, Mine #4 Z.C.A. Balmat, St. Lawrence County, New York.  Ex. Harold L. Dibble collection.  A pair of cubes with minor contacts and all the nice modifications in form that make these so famous.  1.7 x 1.6 x 1.5 cm.  $20

 

 

 

 

 

 

 

OKL-188

OKL-188      Cubic Magnetite and Sphalerite    2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. 8.4 x 5.5 x 5.2 cm with crystals to 1.1 cm on edge. A very fine example with cubes of excellent luster and other minerals including anhydrite, clear and raspberry colored sphalerite, and what appears to be barite. Only one small spot of damage near one edge, and of course, along the broken edges where removed.  Excellent condition overall.     $275

 

 

 

 

 

 

 

OKL-189

OKL-189     Cubic Magnetite with Anhydrite      2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. 7.5 x 5.5 x 4 cm with crystals to 1.7 cm on edge. A big, high luster cube with modifications sitting up high off of the crystallized magnetite and anhydrite matrix. Big cube is very nice from front, minor crystal contacts on back. Good looking specimen.    $225

 

 

 

 

 

OKL-191

Back

OKL-191    Cubic Magnetite     2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. A super TN specimen with damage free cubes imbedded in their natural matrix… anhydrite. Sits on edge nicely. 4.3 x 3.1 x 2.3 cm plate that does fit in a perky box. $60

 

 

 

 

 

 

OKL-192

OKL-192      Cubic Magnetite      RESERVED      2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. 3.2 x 2 x 1.5 cm with crystals to .7 cm on edge. This is an outstanding small cluster with perfect cubes. Floater with only one cube showing a corner that is damaged (and it is a small cube on base). Highest of lusters. Great TN!!   $75

 

 

 

 

 

 

OKL-193

OKL-193    Cubic Magnetite    2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. An intergrown pair of cubes that have minor modifications. Mixed luster depending on the area of the face. Base contact and one tiny chip off back corner. Tiny amount od anhydrite on one corner.  1.6 x 1.5 x 1.4 cm on edges. $35

 

 

 

 

 

OKL-194

OKL-194     Cubic Magnetite     2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. An intergrown group of cubes that have minor modifications. Mixed luster depending on the area of the face. Base contact is small and one tiny crystal contact on a corner. 1.4 x 1.2 x 1.2 cm on edges. $60

 

 

 

 

 

 

OKL-195

OKL-195     Cubic Magnetite     2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. A beautiful cube with fine luster and form. A floater with no contacts or damage of any form. Very nice piece. 1.3 x 1.2 x 1 cm on edges.   $70

 

 

 

 

 

 

OKL-196

OKL-196     Cubic Magnetite      2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. 1.6 x 1.5 x 1.5 cm on edges. A single cube that has obvious modifications. Mixed luster depending on the area of the face but mostly very high. Base contact and one crystal contact on a lower corner.   $45

 

 

 

 

 

 

OKL-197

OKL-197    Cubic Magnetite    2,500’ Level, Z.C.A. Mine, Balmat, St. Lawrence County, New York. Ex. New York State Museum. A fine TN showing nice complexity and obvious modifications including the very rare octahedral faces on a couple corners. Contacts are on base in two small spots. Super piece in all regards. 1.4 x 1.4 x 1.4 cm on edges.   $80

 

 

 

 

 

OKK-748

OKK-748     Hexagonite      Balmat, St. Lawrence County, New York.  Previous New York State Museum collection.  Uncommon material now that the mine dumps have been closed to collecting.  This is a large specimen measuring 17 x 11 x 5 cm.  The crystal are up to 2.1 cm each and the entire piece is fibrous crystals of hexagonite.  The color is rich and the crystals are translucent to transparent.  It has other decent crystals on the back and edges.  Excellent luster with no staining or other problems.  An outstanding example for this price.   $95

 

 

 

 

 

OKF-591

OKF-591     Cubic Magnetite    2,500 foot level, ZCA #4 Mine, Balmat, St. Lawrence Co., New York.  Ex. Eric Edy collection.  A good coverage of this rare crystal form of magnetite on the primary display face of this 6.8 x 3.5 x 3.5 cm specimen.  The crystals are up to 1 cm on edge and have a nice luster.  A couple small barren areas where crystals once were but it is better than most…especially at this price.  40$

 

 

 

 

 

OKB-816

OKB-618     Magnetite     ZCA, Balmat, NY.  Ex. Barbara Pauquette Collection.  Rare cubic magnetite crystals to .7 cm on edge in their original matrix.  Anhydrite.  20$

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