Mineralogy Database
Search |
About the mineralogy database |
Contact
Sample n° 12068
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
ZOISITE | Ca2Al3[Si2O7][SiO4]O(OH) | sorosilicates | epidote | major |
Description
Description:
purple crystals (16 g), var. tanzanite
Origin
- Country: Tanzania
- Region: Arusha Region
- Locality: Arusha
Specification
-
Donors: EhrmannDonation year: 1970
-
Sampling year:Registration date:
-
Quantity: 2Size: 2
-
Dimension code 1>2>3: 1Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no