Sperrylite
ID: 38
Sperrylite
Chemical Formula
PtAs₂
Hardness (Mohs)
6 - 7
Crystal System
Isometric
Streak
Dark grey to black
Luster
Metallic
Diaphaneity
Opaque
Color
Tin-white
Crystal Habit / Mode of Occurrence
Isometric - Diploidal
Density
10.58 g/cm³
Fun Facts
Named after Francis Louis Sperry, chemist at Sudbury, Ontario, who discovered the mineral. Tenacity: Brittle. Common Uses: Primarily of scientific and collector interest; source of platinum.