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Sammetblende

A variety of Goethite
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Formula:
Ξ±-Fe3+O(OH)
A fuzzy variety of goethite with a velvety luster created by carpets of microscopic acicular crystals forming crusts or balls. The name is derived from the German word for "velvet" and is often used for this variety in Germany and Bohemia. A more modern spelling is "Samtblende".


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Unique IdentifiersHide

Mindat ID:
5464 (as Sammetblende)
1719 (as Goethite)
Long-form identifier:
mindat:1:1:5464:1 (as Sammetblende)
mindat:1:1:1719:6 (as Goethite)

Chemistry of SammetblendeHide

Mindat Formula:
Ξ±-Fe3+O(OH)
Element Weights:
Element% weight
O96.946 %
H3.054 %

Calculated from ideal end-member formula.
Elements listed:
Fe, H, O - search for minerals with similar chemistry

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for SammetblendeHide

References for SammetblendeHide

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