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For your convenience, New Additions are organized by date uploaded to the website.
If a date is shown in red you are currently viewing those minerals uploaded on that particular date.
Updates prior to the last six dates shown above are not included. |
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| Rostite #Ak24048
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| Kladno, Czech Republic |
Type Locality
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| Chemical Formula: AlSO4(OH,F)•5(H2O) |
| Size: Thumbnail |
Massive piece of white crusty Rostite. |
| Overall: 3 x 1.5 x 2.5 cm |
| Sold |
| $25.00 |
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| More information on Rostite on Webmineral.com or MinDat.org |
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| Click For More Photos |
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| Sillenite with Bismutite #AK24046
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| Junge Kalbe Mine, Erzgebirge, Saxony, Germany |
| Chemical Formula: Bi12SiO20 |
| Size: Thumbnail |
Olive green waxy Sillenite throughout matrix with minor orange-brown Bismutite. |
| Overall: 2 x 1 x 1.5 cm |
| Sold |
| $25.00 |
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| More information on Sillenite on Webmineral.com or MinDat.org |
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| Svabite with Hematite, Garnet #AK24036
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| Rakten, Ultevis, Lappland, Sweden |
Kidwell Collection
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| Chemical Formula: Ca5(AsO4)3F |
| Size: Sm Cabinet |
Chalky white masses throughout matrix associated with bladed Hematite and red garnets. Arsenat analogue of Fluorapatite. |
| Overall: 5.5 x 4 x 3 cm |
| Sold |
| $25.00 |
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| More information on Svabite on Webmineral.com or MinDat.org |
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| Click For More Photos |
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| Tephroite in Rhodonite #10532
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| Treburland mine, Bodmin, Cornwall, England |
| Chemical Formula: Mn2SiO4 |
| Size: Sm Cabinet |
Dark reddish brown crystal grains in compact Rhodonite (pinkish red) matrix. One side has been sawed, an indication of testwork to verify the species. |
| Overall: 6 x 3 x 3 cm |
| Available |
| $35.00 |
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| More information on Tephroite in Rhodonite on Webmineral.com or MinDat.org |
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| Tritomite-(y) #AK24045
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| Cranberry Lake, Sussex Co., New Jersey, United States |
Kidwell Collection
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| Chemical Formula: (Ce,La,Ca,Y,Th)5(Si,B)3(O,OH,F)13 |
| Size: Miniature |
Glassy, metamict(?) large grains in matrix. Formerly of the Gunnar Bjareby collection. |
| Overall: 5 x 3 x 2 cm |
| Sold |
| $40.00 |
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| More information on Tritomite-(y) on Webmineral.com or MinDat.org |
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| Tunellite #10311
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| Borax Co., Open Pit mine, Boron, Kern Co., California, United States |
| Chemical Formula: SrB6O9(OH)2•3(H2O) |
| Size: Miniature |
Greyish white, translucent single crystal to 2.5cm on a bit of matrix. Ex. Kay Robertson collection with tag. |
| Overall: 4 x 3 x 2 cm |
| Sold |
| $35.00 |
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| More information on Tunellite 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: February 8, 2010 |
