Mineralpedia Details for Hedleyite
Hedleyite
Named after the type locality at the Good Hope mine near Headley in British Columbia. Hedleyite is a rare mineral with localities in, additionally, the United States, Bolivia, Kyrgyzstan, Uzbekistan, Russia, Finland, Poland, Italy, England, and India, among others. It occurs as a late-stage hydrothermal mineral in quartz veins as well as in skarn- and breccias-assocaited massive sulfides, and can additionanlly be found in pegmatites.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/hedleyite.pdf
- Formula
- Bi7Te3
- Crystal System
- Trigonal
- Cleavage
- Perfect, None, None
- Luster
- Metallic
- Color
- iron black, black, tin white
- Class
- Trigonal - Hexagonal Scalenohedral
- Fracture
- Flexible
- Hardness
- 2
- WebMineral
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- Mindat
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Hedleyite from Good Hope mine, Hedley, British Columbia, Canada
- Special Info
- Type Locality, EDS Confirmed
This specimen is simply loaded with Hedleyite, which forms foil-like silvery to tarnished golden crystals. EDS confirmed.