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> Minerals
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Zinnwaldite
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| Wolframite, Zinnwaldite
 Cínovec , Krušné Hory Mts, Ústí Region (Bohemia), Czech Republic
Item-No.: MIN0159
Price: 130.00 EUR
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| Zinnwaldite
Cínovec , Krusné Hory Mts, Ústí Region (Bohemia), Czech Republic
Item-No.: MIN5491
Price: 95.00 EUR
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| Synonyms: |
Lithioeisenglimmer |
| IMA Status: |
Discredited, no longer a species - a series of trioctahedral micas on, or close to, the siderophyllite-polylithionite |
| Classification: |
Silicates, Phyllosilicates, Mica Group |
| Chemical formula: |
KLiFe2+Al(AlSi3O10)(F,OH)2 |
| Crystal system: |
Monoclinic |
| Density (g/cm3): |
2,9 - 3,02 measured, 2,831 calculated |
| Tenacity: |
Elastic, flexible |
| Cleavage: |
Perfect on {001} |
| Fracture: |
Micaceous |
| Hardness (Mohs): |
2,5 - 4 |
| Colour: |
Silver-grey, green-grey, greyish-brown, yellowish-brown |
| Lustre: |
Vitreous, Pearly |
| Streak: |
White |
| Type locality: |
Cínovec / Zinnwald (Cinvald), Erzgebirge; Krusné Hory Mts, Germany & Czech Republic |
| Application: |
Important source of Lithium |
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