mineral

Labradorite

Labradorite (Ca,Na)(Al,Si)4O8

Hardness: 6-6.5 on Mohs scale. Color: Pale green, blue, colorless, or grey base. Luster: Vitreous to pearly. Crystal system: Triclinic. Displays a characteristic labradorescence (schiller effect).

Hardness: 6-6
Color: Pale green, blue, colorless, or grey base
Luster: Vitreous to pearly

Identified April 4, 2026More mineral →

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Physical properties

Hardness: 6-6.5 on Mohs scale. Color: Pale green, blue, colorless, or grey base. Luster: Vitreous to pearly. Crystal system: Triclinic. Displays a characteristic labradorescence (schiller effect).

Formation & geological history

Formed in mafic igneous rocks such as basalt and gabbro, as well as in anorthosite. It crystallizes from cooling magma in the Earth's crust.

Uses & applications

Commonly used as a gemstone in jewelry (rings, pendants), as an ornamental stone in countertops and tiles, and as a popular specimen for crystal collectors.

Geological facts

Labradorite is named after the Labrador Peninsula in Canada, where it was first discovered in 1770. According to Inuit legend, the Northern Lights were trapped inside rocks along the coast of Labrador until a warrior struck them with a spear.

Field identification & locations

Identify by rotating under a light source to reveal iridescent flashes of blue, gold, or green. Common locations include Canada (Labrador), Madagascar, Norway, and Finland.