mineral

Hypersthene

Hypersthene ((Mg,Fe)SiO3)

AI-generated identification · may be incorrect

Hardness: 5.0-6.0 on Mohs scale; Color: Velvet brown, black, or dark green with pearly, metallic, or silky luster (labradorescence/schiller effect); Crystal structure: Orthorhombic.

Hardness: 5

Identified April 10, 2026More mineral →

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Physical properties

Hardness: 5.0-6.0 on Mohs scale; Color: Velvet brown, black, or dark green with pearly, metallic, or silky luster (labradorescence/schiller effect); Crystal structure: Orthorhombic.

Formation & geological history

Forms in mafic and ultramafic igneous rocks such as gabbro, norite, and andesite, often in high-temperature environments. It is a member of the pyroxene group.

Uses & applications

Predominantly used as a gemstone for jewelry (cabochons) and as a collector's mineral specimen. Also utilized in metaphysical gemstone practices.

Geological facts

Hypersthene is often nicknamed 'Velvet Labradorite' due to its shimmering, chatoyant properties that react to light. It is chemically an intermediate between enstatite and ferrosilite.

Field identification & locations

Identify in the field by its dark color and the characteristic metallic sheen (schiller) when rotated under light. Commonly found in Canada, Norway, and Greenland.