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Sample n° 15069
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
ZOISITE | Ca2Al3[Si2O7][SiO4]O(OH) | sorosilicates | epidote | major |
Description
Description:
purplish cut stone (round cut), var. tanzanite
Origin
- Country: Tanzania
- Region:
- Locality:
Specification
-
Donors:Donation year: 1991
-
Sampling year:Registration date:
-
Quantity: 1Size:
-
Dimension code 1>2>3: 1Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no