Michigan Mineral Specimens

We normally have a good selection of minerals from the copper mines of Michigan. Sometimes we have fantastic examples of coppers, silvers and half breeds. If you do not see what you are looking for contact us.
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OKF-306 Celestine Stoneco Maybee Quarry, Michigan. This is an enormous single crystal measuring 11 x 12.4 cm this 3.4 cm thick. It is two shades of blue and has a complex termination with multiple points. There are lots of tiny rider crystals near the base of the specimen on the front and the back. The crystal had contact with another on its left-hand side and a few of the riders in the backside are chipped otherwise this exceptionally large, heavy crystal that is in very good condition. $140
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OKF-094 Copper in Calcite on Calcite Upper Peninsula, Michigan. Ex. Dr. Steve Chamberlain Collection. A double terminated primary crystal with other tiny crystals on a copper matrix. 3 x 2 cm. Another classic which are becoming very difficult to find in desirable specimens such as this one at this kind of price. Attached to glass plate which can be removed. No damage. 100$
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OKD-379 Copper Phoenix Mine, Michigan. Ex. Nancy Collins Collection. Here is certainly the nicest copper specimen I have ever had the privilege of handling. It measures 11.5 x 9.5 cm and is far more three-dimensional than the photos seem to indicate. The specimen is illustrated in Teresa Kennedy's book, "Gems of Wisdom, Gems of Power". It branches out in several directions with large crystals to 4 cm in diameter. The piece has a wonderful light patina and is textbook in form. I have photographed the specimen without a stand whereas it displays best with one. When displayed the piece should be rotated 90 degree from the position in which I have photographed it. That way the small crystals are at its base and the largest crystals stand up and branch outward on the top of the specimen. The specimen is a free-floating pocket specimen with only one spot that could potentially be a point of attachment to matrix. There is no damage visible even with the aid of magnification. It would have a hard time being better in any way. I searched all the top dealers and the Michigan specialists at the Tucson show this year and failed to find a specimen that stacked up to this one. I could go on and on about how nice this piece is but it really needs to be seen to be appreciated. Without a doubt this is of museum caliber. It is far under priced at 9,200$
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OKE-382 Copper included Caclite Quincy Mine, Hancock, Michigan. Ex. Nancy Collins Collection. As I imagine most readers know these specimens are tough to get in any size. This specimen is small, 3.3 x 2.2 x 1.5 cm, but has great color and luster. Several crystals are on matrix. Nice. 195$
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OKE-024 Pyrolusite Taylor Mine, Baraga Co., Michigan. Ex. Nancy Collins collection. A exceptionally fine cluster of well terminated crystals to over 2 cm each. The grouping measures 3.8 x 3.5 x 2.6 and is coated by nice crystals with only a couple on the periphery showing damaged (when displayed right these don’t show). Bright metallic luster. Very rare to find pyrolusite this nice and especially from Michigan. A rare find. 395$
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OKD-831 Celestine Maybee, Michigan. Ex. Dr. Steve Chamberlain Collection. Here is a thick single crystal which measures 4 x 3 x 2 cm and is an attractive ice blue color. The termination is rather complex and interesting. The crystal is damage free. 35$
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OKD-393 Datolite Keweenaw Peninsula, Michigan. Ex Nancy Collins Collection. This nice datolite nodule has a nice polish, is a blotchy green color and has no cracks or other problems common to these pieces. A classic from Michigan. It measures 5 x 4.4 cm. 160$
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OKD-381 Prehnite on Copper in Calcite Quincy Mine, Michigan. Ex. Nancy Collins Collection. Here is a smaller cluster (5 cm) with very nice copper phantoms. One calcite tip is cleaved but difficult to notice in person or photos. Crystals are well formed, double terminated and lightly striated. It takes a nice, yet realistic, photograph. The piece is one of the finest miniatures I have ever offered. 2,800$
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OKD-382 Copper in Calcite Quincy Mine, Michigan. Ex. Nancy Collins Collection. 13 x 7 cm partial vug with larger dominating crystal. Big crystal is 6 cm. Lower section of main crystal is cleaved. Out of all the copper in calcite pieces from this collection, this is the poorest, yet it is still a substantial and very noteworthy specimen. It displays nicely, however, on close inspection I find the damage to be distracting and certainly detrimental to its potential value. As a result it is offered here at approximately 15% to 20% of what it would be should it have been damage free. It is still a rare American classic in search of a home. 1,200$
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OKD-367 Calcite on Copper Quincy Mine, Ilancock, Keweenaw Peninsula, Michigan. Classic stuff…Beautiful calcite schalenohedrons to 1.3 cm each with well bright inclusions of copper. The piece displays well from all sides and could be set a couple of different ways. Very attractive for this material. Zero damage. The specimen could be trimmed down on one side but I would not. It is about 9 cm high as is. It is attractive just the way it is. This is a tough to find specimen at any price. This one is priced well below what others charge for quality specimens like this…3,500$
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OKD-300 Native Silver Crystals Kearsarge Mine, Houghton Co., Michigan. Ex. Nancy Collins Collection. 4.5 x 3.5 x 1 cm overall. Another rare American classic. This silver is composed of poorly defined, branching crystals which create a nice aesthetic form (though somewhat two dimensional in nature). Patina typical of material of this era. Perfect condition. 1,425$
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OKD-302 Copper/ Silver (Half-breed) Nugget Keweenau Peninsula, Michigan. Ex. Nancy Collins Collection. Clean example of copper and silver. No more specific location given for this fine large nugget. It measures 6.5 x 4.5 x 2 cm. 400$
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OKD-303 Silver Nugget Keweenau Peninsula, Michigan. Ex. Nancy Collins Collection. Another fine piece with no more specific location given. This one measures 5 x 4.5 x 2.5 cm. The previous purchase tag is with this one and describe it as being purchased in 1979 when silver ran at about 16$ per ounce. This piece is over 6 ounces (186 grams). It has no damage and a mild patina. 1,400$
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OKA-997 Copper Caledonia Mine, Ontonogon Co., Michigan. Nice mass/ plate with original patina. Not acid dipped. Copper color with low to medium luster. 8.5 x 5.5 with a single branch. Nice example. 10$