Biotite from Madagascar

Discover a photograph of a Biotite from Madagascar.

Madagascar biotite is a black or dark brown mica that occurs in thin, shiny flakes. Easily cleaved into flexible sheets, it is often found with quartz or feldspar in the island’s granitic and pegmatitic rocks. Madagascan specimens are sought after for the clarity and size of their crystals, reflecting Madagascar’s exceptional mineralogical richness.