mineral
Labradorite
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
AI-generated identification · may be incorrectHardness of 6 to 6.5 on the Mohs scale, grayish to dark base color, vitreous to pearly luster, trichelic crystal system, exhibits distinct labradorescence.
Identified More mineral →
Explore Labradorite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6 to 6.5 on the Mohs scale, grayish to dark base color, vitreous to pearly luster, trichelic crystal system, exhibits distinct labradorescence.
Formation & geological history
Forms in mafic igneous rocks like basalt and gabbro through slow cooling in the Earth's crust.
Uses & applications
Widely used as a semi-precious gemstone in jewelry, decorative items, and architectural facings.
Geological facts
First discovered in Labrador, Canada, in 1770, it is famous for its striking iridescent optical phenomenon known as labradorescence.
Field identification & locations
Easily identified by its distinctive play of blue, green, and gold colors when rotated in the light. Common deposits are found in Canada, Madagascar, and Finland.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Limonite
FeO(OH)•nH2O
mineral
Limonite
FeO(OH)•nH2O
mineral
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Feldspar
Feldspar Group (Tectosilicate, e.g., KAlSi3O8)
mineral