mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
AI-generated identification · may be incorrectHardness: 5.5-6 (Mohs scale); Color: Black to dark brownish-green with metallic sheen; Luster: Pearly to sub-metallic; Crystal structure: Orthorhombic; Cleavage: Good; Specific gravity: 3.4-3.9
- Hardness
- 5
- Color
- Black to dark brownish-green with metallic sheen
- Luster
- Pearly to sub-metallic
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Physical properties
Hardness: 5.5-6 (Mohs scale); Color: Black to dark brownish-green with metallic sheen; Luster: Pearly to sub-metallic; Crystal structure: Orthorhombic; Cleavage: Good; Specific gravity: 3.4-3.9
Formation & geological history
Formed in igneous and metamorphic rocks, particularly in basic and ultrabasic rocks like gabbro and norite. It is often found in high-pressure, high-temperature environments.
Uses & applications
Primarily used as a gemstone for jewelry (cabochons and beads) and as a collector's specimen. Known in metaphysical circles as a 'stone of rest'.
Geological facts
Hypersthene is often referred to as 'velvet labradorite' because of its unique schiller effect (labradorescence), which creates a cat's-eye or velvety sheen when rotated in light.
Field identification & locations
Identify by its characteristic 'shimmer' or labradorescence on a dark base. Commonly found in Canada (Paul's Island, Labrador), USA, Norway, and Greenland. Collectors look for a strong, uniform sheen.
