Mineralogy Database
Search |
About the mineralogy database |
Contact
Sample n° 8862
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
ACTINOLITE | [ ]Ca2(Mg4,5-2,5Fe2+0,5-2,5)Si8O22(OH)2 | inosilicates | amphiboles | major |
TREMOLITE | [ ]Ca2Mg5,0-4,5Fe2+0,0-0,5Si8O22(OH)2 | inosilicates | amphiboles | major |
CALCITE | Ca(CO3) | carbonates | - | minor |
TALC | Mg3Si4O10(OH)2 | phyllosilicates | - | minor |
Description
Description:
coarse-crystalline block, with partial alteration to talc and calcite
Origin
- Country: Rwanda
- Region: Gisenyi
- Locality: Lugaragata
Specification
-
Donors: BertossaDonation year: 1961
-
Sampling year:Registration date:
-
Quantity: 1Size:
-
Dimension code 1>2>3: 1Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no