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Sample n° 13327
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
RIEBECKITE | [ ]Na2(Fe2+3Fe3+2)Si8O22(OH)2 | inosilicates | amphiboles | major |
Description
Description:
tiger's eye (silicified crocidolite), polished (8 cm)
Origin
- Country: South Africa
- Region: Northern Cape
- Locality: Niekerkshoop
Specification
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Donors: TimmermansDonation year: 1975
-
Sampling year:Registration date:
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Quantity: 1Size: 2
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Dimension code 1>2>3: 2Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
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Thin section: noChemical analysis: noX-Ray spectra: no