130-A25-5
Displaying 1 - 33 of 33
| Catalog # | Name | Description | ||
|---|---|---|---|---|
| 1 | 00.2.11.262.0005 | Talc | Talc schist. |
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| 2 | 00.2.3.670.0001 | Vermiculite | Soft, corky like sheets. Color: BR |
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| 3 | 00.2.3.670.0002 | Hemimorphite | None |
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| 4 | 00.2.3.675.0005 | Hemimorphite | None |
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| 5 | 00.2.3.687.0007 | Talc | Massive. Color: GR |
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| 6 | 00.2.5.137.0008 | Vesuvianite | None |
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| 7 | 00.2.5.137.11 | Zinnwaldite | Zinnwaldite is a very rare member of the mica group and is not well known even by mineral collectors. Zinnwaldite is darker colored than typical muscovite but lighter than phlogopite or biotite The dark color and density in the three iron containing micas increase with an increase in the iron and magnesium content. Zinnwaldite is difficult to distinguish from the other micas at least by ordinary methods and lacallity and enviroment are keys to identification. It is limited to special granites and their pegmatites. Zinnwaldite, like other micas, has a layered structure of lithium iron aluminum silicate sheets weakly bonded together by layers of potassium ions. These potassium ion layers produce the perfect cleavage. Zinnwaldite is rarely available to collectors but some nice specimens with apatite are now on the market showing nice tabular crystals. |
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| 8 | 00.2.7.395.0007 | Vesuvianite | None |
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| 9 | 00.2.9.64.0005 | Epidote | None |
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| 10 | 00.2.9.66.0013 | Epidote | None |
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| 11 | 1970.47.1.0043 | Talc | Sawed triangular piece. Color: WH |
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| 12 | 1970.47.1.0263 | Talc | Color: PK |
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| 13 | 1970.74.0016M | Talc | Consists of parallel. Color: WH |
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| 14 | 1970.74.0198M | Vesuvianite | None |
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| 15 | 1970.74.0312M | Epidote | None |
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| 16 | 1970.74.0393M | Epidote | None |
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| 17 | 1970.74.0740M | Vesuvianite | Crystals; essonite on pargasite. |
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| 18 | 1970.74.0749M | Talc | Foliated; massive. Color: GR |
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| 19 | 1970.74.0766M | Talc | Assoicated with pyrite & actinolite. Color: GR |
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| 20 | 1970.74.0838M | Epidote | Crystals on quartz and massive epidote.. |
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| 21 | 1970.74.1160M | Vesuvianite | Crystals in scheelite. |
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| 22 | 1970.74.1228M | Talc | None |
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| 23 | 1970.74.1239M | Epidote | In hornblend schist. |
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| 24 | 1970.74.1499M | Hemimorphite | Hemimorphite crystals, geothite. |
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| 25 | 1970.74.1669M | Talc | Variety of talc known as steatite usually desiribed as compact, felted and light gray. Specimen also contains "serpentine". Color: PR |
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| 26 | 1987.3.0039 | Epidote | None |
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| 27 | 1990.53.0088 | Hemimorphite | Small prismatic crystals on limonite, also partially iron coated. Color: BK |
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| 28 | 1990.53.0092 | Hemimorphite | None |
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| 29 | 1990.53.0103 | Epidote | None |
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| 30 | 1990.53.0162 | Talc | Foliated massive, small pyrite cubes. Color: GR |
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| 31 | 1995.36.0036 | Talc | Scam of translucent talc. Color: GR-WH |
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| 32 | 1995.36.0039 | Vermiculite | Scaly aggregate. Color: BR |
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| 33 | 2006.15.0006 | Mica Zinnwaldite | A 450 gram shiny mica specimen. The silver is metallic in luster and the pink looks more waxy. Color: Pk SL |
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