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| Apuanite with Versiliaite #23757
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| Buca della Vena Mine, Apuan Alps, Lucca, Tuscany, Italy |
Type Locality
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| Chemical Formula: Fe++Fe+++4Sb+++4O12S |
| Size: Miniature |
Black grains to 3mm of Versiliaite and silvery-black crystals to 1mm of Apaunite. The two are difficult to distinguish, but based on some research the Apuanite are the well formed metallic crystals and the Versiliaite is the dull black subhedral grains. Ex. D. Garske specimen. |
| Overall: 3.5 x 1.5 x 2 cm |
| Available |
| $75.00 |
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| More information on Apuanite on Webmineral.com or MinDat.org |
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| Chabazite #23598
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| Malad, near Bombay, Maharashtra, India |
| Chemical Formula: (Ca0.5,Na,K)4[Al4Si8O24]•12H2O |
| Size: Sm Cabinet |
Large pink rhombs of Chabazite to 1.7cm nicely perched on Apophylite matrix. Evidently most Chabazite from the Deccan basalt flows are white, whereas the Chabazite from the Bombay (now called Mumbai) are often pink. This is an excellent specimen. |
| Overall: 8 x 5 x 3.5 cm |
| Available |
| $150.00 |
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| More information on Chabazite on Webmineral.com or MinDat.org |
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| Corundum var. Sapphire #23276
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| Hassanabad Nala, Hunza, Northern Areas, Pakistan |
| Chemical Formula: Al2O3 |
| Size: Sm Cabinet |
Excellent light purple to red crystals to 1.3cm in a large 3cm cluster perched nicely in marble matrix. |
| Overall: 6 x 4 x 2.5 cm |
| Available |
| $450.00 |
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| More information on Corundum var. Sapphire on Webmineral.com or MinDat.org |
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| Lengenbachite #23610
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| Lengenbach quarry, Binn Valley, Valais, Switzerland |
Type Locality
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| Chemical Formula: Pb6(Ag,Cu)2As4S13 |
| Size: Thumbnail |
Metallic crystalline Lengenbachite with a slight bluish iridescence embedded in matrix. This specimen comes with a J. Cilen label. |
| Overall: 1.5 x 1.5 x 1.5 cm |
| Available |
| $40.00 |
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| More information on Lengenbachite on Webmineral.com or MinDat.org |
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| Natrolite with Analcime #23678
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| Aussig, Bohemia, Czech Republic |
Ex. Michigan College of Mining & Tech. Collection
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| Chemical Formula: Na2[Al2Si3O10]•2(H2O) |
| Size: Cabinet |
Large piece mostly covered with colorless Natrolite crystals in tufts to 6mm and clear minute Analcime crystals. The large 2.5cm crystal on the corner of the piece is a Calcite crystal covered in a druse of fine Natrolite. From the A. E. Seaman Mineralogical Museum at Michigan Tech. |
| Overall: 13 x 5 x 9.5 cm |
| Available |
| $60.00 |
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| More information on Natrolite on Webmineral.com or MinDat.org |
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| Pyromorphite #SJC23371
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| Iron Crag, Roughton Gill, Caldbeck Fells, Cumbria, England |
Skip Colflesh Collection
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| Chemical Formula: Pb5(PO4)3Cl |
| Size: Sm Cabinet |
Beautiful lime green, acicular to elongated barrel shaped crystals to 6mm on black manganese rich matrix - a great contrast in color. Minor crystals dinged. |
| Overall: 7 x 5 x 2.5 cm |
| Available |
| $250.00 |
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| More information on Pyromorphite 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 6, 2010 |
