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Sample n° 14021
Minerals found in the sample
Mineral | Formula | Category | Subcategory | Importance |
---|---|---|---|---|
unspecified | - | - | major |
Description
Description:
vitreous black fragments (4 cm) (obsidian)
Origin
- Country: Ecuador
- Region:
- Locality:
Specification
-
Donors: GoossensDonation year: 1983
-
Sampling year:Registration date:
-
Quantity: 7Size: 4 cm
-
Dimension code 1>2>3: 3Quality code 1>2>3: 1
-
Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no