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| These galleries are dedicated to rare minerals. |
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Products are separated alphabetically, letters that are underlined contain products.
If a letter is red you are currently viewing that page. |
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| Click For More Photos |
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Columbite-Tantalite #DC25183
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| Hugo Mine, Keystone, Pennington Co., South Dakota, United States |
| Chemical Formula: Fe++Nb2O6 |
| Size: Sm Cabinet |
Black thin Columbite-Tantalite to 1.5-2cm embedded in feldspar matrix. |
| Overall: 5.5 x 2.5 x 3 cm |
| Available |
| $35.00 |
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| More information on Columbite-Tantalite on Webmineral.com or MinDat.org |
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| Click For More Photos |
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Conichalcite #GJ21790
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| Mina Ojuela, Mapimi, Durango, Mexico |
Jungles Collection
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| Chemical Formula: CaCu(AsO4)(OH) |
| Size: Miniature |
Green Conichalcite beads to less than 0.25mm. Good coverage. |
| Overall: 4 x 1 x 2.5 cm |
| Available |
| $35.00 |
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| $25.00 |
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| More information on Conichalcite on Webmineral.com or MinDat.org |
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Connellite with Cornwallite #20189
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| Gold Hill mine, Tooele Co., Utah, United States |
| Chemical Formula: Cu19Cl4(SO4)(OH)32•3(H2O) |
| Size: Miniature |
Beautiful blue prismatic Connellite microcrystals in a 3mm patch on Quartz matrix with thin green coatings of Cornwallite. |
| Overall: 5 x 3.5 x 4.5 cm |
| Sold |
| $45.00 |
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| More information on Connellite on Webmineral.com or MinDat.org |
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Copper #13555
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| 1450 bench, Sunny Side area, Ray mine, Pinal Co., Arizona, United States |
| Chemical Formula: Cu |
| Size: Thumbnail |
Small spinel twin (?) to 1.7cm. |
| Overall: 1.7 x 0.3 x 0.4 cm |
| Available |
| $25.00 |
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| More information on Copper on Webmineral.com or MinDat.org |
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Cordierite #23639
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| Mt. Bity District, Madagascar |
Antique Specimen
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| Chemical Formula: Mg2Al4Si5O18 |
| Size: Thumbnail |
Piece of glassy gray-blue Cordierite with some yellowish internal reflections. Comes with an old handwritten label. This little piece is translucent with great color and may be considered near gem quality. |
| Overall: 2 x 1 x 1.5 cm |
| Available |
| $50.00 |
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| More information on Cordierite on Webmineral.com or MinDat.org |
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Cordierite #DE13851
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| Tsihombe, Madagascar |
Erling Collection
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| Chemical Formula: Mg2Al4Si5O18 |
| Size: Thumbnail |
Rough piece of blue-gray Cordierite, which when held up to the light displays pleochroism typical of Cordierite. Although Cordierite has many worldwide occurrences it is formed under specific high temperature and pressure conditions and is a indicator mineral in metamorphic rocks. |
| Overall: 3 x 2 x 2 cm |
| Available |
| $40.00 |
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| More information on Cordierite on Webmineral.com or MinDat.org |
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Copyright © 2000 - 2010 Dakota Matrix Minerals
All photos by Dakota Matrix and are Copyrighted © and may not be used without permission
Last modified: September 7, 2010 |
