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Sample n° 13868
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
APATITE | Ca5(PO4)3(OH,F,Cl) | phosphates | - | major |
QUARTZ | SiO2 | tektosilicates | - | major |
WOLFRAMITE | (Fe2+,Mn2+)(WO4) | molybdates and tungstates | - | major |
BIOTITE | K(Fe2+,Mg)3(AlSi3O10)(OH)2 | phyllosilicates | mica | minor |
CALCITE | Ca(CO3) | carbonates | - | minor |
PYRITE | FeS2 | sulfides and sulfosalts | - | minor |
Description
Description:
geode with large black wolframite crystals and green apatite crystals
Origin
- Country: Portugal
- Region: Panasqueira
- Locality:
Specification
-
Donors: DeliensDonation year: 1980
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Sampling year:Registration date:
-
Quantity: 1Size: 2
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Dimension code 1>2>3: 2Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: yes