Mineralogy Database

Search |  About the mineralogy database |  Contact

Sample n° 13704

Minerals found in the sample
Mineral Formula Category Subcategory Importance
LUDLAMITE Fe2+3(PO4)2•4H2O phosphates - major
Description
Description: dark green crystals (5 mm) on block (3 cm)
Origin
  • Country: USA
  • Region: South Dakota
  • Locality: Pennington, Big Chief Mine
Specification
  • Donors: Segeler
    Donation year: 1980
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 3
  • 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