Cordierite ni imyunyu ngugu ya silikatike, mubisanzwe ubururu bwerurutse cyangwa umutuku wijimye, ikirahure cyikirahure, kibonerana.Cordierite ifite kandi ibiranga kuba polikromatike idasanzwe (tricolor), itanga urumuri rwamabara atandukanye mubyerekezo bitandukanye.Ubusanzwe Cordierite yaciwe muburyo gakondo, kandi ibara ryamamaye cyane ni ubururu-umutuku.