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Sample n° 19801
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
OPAL | SiO2nH2O | tektosilicates | - | major |
Description
Description:
pinkish brown, with bright lustre, conchoidal fracture
Origin
- Country: Mexico
- Region: Guanajuato
- Locality:
Specification
-
Donors: de CuyperDonation year: 2022
-
Sampling year:Registration date:
-
Quantity: 1Size:
-
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: no