Labradorite from Madagascar

A labradorite block from Madagascar, cut and polished along the schiller-optimum axis. The eponymous schiller moves across the polished surface from blue to green to gold.

Labradorite is a calcium-sodium plagioclase feldspar. The characteristic schiller (labradorescence) is caused by the refraction of light at microscopically thin lamellar layers of different plagioclase compositions.

The Madagascan deposits in the Maniry region supply the highest quality labradorite material worldwide. Material value is a function of schiller intensity, basic tone calmness, and block size.

A Madagascan collector's item with documented Maniry provenance and premium schiller in classic display cabinet dimensions.