Mineralpedia Details for Gilmarite
Gilmarite
Named in honor of Gilbert Mari, a mineralogist at the University of Nice-Sophia Antipolis in France who collected the material that the mineral was later found in. Gilmarite is a rare mineral that occurs with other copper arsenates and copper arsenides in oxidized deposits. Localities include in France, Germany, Chile, and Hungary.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gilmarite.pdf
- Formula
- Cu2+3(AsO4)(OH)3
- Crystal System
- Triclinic
- Crystal Habit
- Rosette, Microscopic Crystals
- Cleavage
- None, None, None
- Luster
- Vitreous (Glassy)
- Color
- greenish blue
- Streak
- greenish blue
- Class
- Triclinic - Pedial
- Fracture
- Brittle - Irregular
- Hardness
- 3
- WebMineral
- View Gilmarite
- Mindat
- View Gilmarite
Gilmarite from El Guanaco mine, Santa Catalina, Antofagasta, Chile
Blue elongated crystals lining a 4mm vug associated with Conichalcite.
Bluish green compact aggregates of Gilmarite to 0.75mm
Click thumbnail images for larger view.
Gilmarite from prospect near Rhyolite Pass, Mineral Co., Nevada, United States
- Special Info
- XRD Confirmed,EDS Confirmed
Tiny little Gilmarite crystals in a 1.5mm vug with Cornwallite. This is a little known locality. XRD/EDS.
Click thumbnail images for larger view.
