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Sample n° 16328
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
CORUNDUM | Al2O3 | oxides and hydroxides | - | major |
HORNBLENDE | [ ]Ca2((Fe2+,Mg)4Al)(Si7Al)O22(OH)2 | inosilicates | amphiboles | major |
ZOISITE | Ca2Al3[Si2O7][SiO4]O(OH) | sorosilicates | epidote | major |
Description
Description:
dark red corundum (var. ruby), in bright green zoisite matrix with dark hornblende (tschermakite)
Origin
- Country: Tanzania
- Region: Arusha Region
- Locality: near Longido Ruby Mine
Specification
-
Donors: ErreraDonation year: 2010
-
Sampling year: 1994Registration date:
-
Quantity: 4Size:
-
Dimension code 1>2>3: 1Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no