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Sample n° 9085
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
ANDALUSITE | Al2SiO5 | nesosilicates | - | major |
Description
Description:
crystals with black cross (1-5 cm), var. chiastolite
Information:
Petreus, I., 1974. The divided structure of crystals. II. Secondary structures and habits. Neues Jahrbuch für Mineralogie, Abhandlungen, 122, 314-338.
Origin
- Country: Rwanda
- Region: Gisenyi
- Locality: Kirengo
Specification
-
Donors: ComblainDonation year: 1962
-
Sampling year:Registration date:
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Quantity: XSize: 2
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Dimension code 1>2>3: 3Quality 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