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Sample n° 6645

Minerals found in the sample
Mineral Formula Category Subcategory Importance
LAUMONTITE CaAl2Si4O12•4H2O tektosilicates zeolites major
CALCITE Ca(CO3) carbonates - minor
CHLORITE (Mg,Fe2+)5Al(AlSi3O10)(OH)8 phyllosilicates chlorite minor
COPPER Cu native elements - minor
Description
Description: small pink crystals and coatings on black copper (5 cm)
Origin
  • Country: USA
  • Region: Michigan
  • Locality: Keweenaw County, Mohawk Mine
Specification
  • Donors: Polinard
    Donation year: 1954
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 2
  • Dimension code 1>2>3: 3
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: yes
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