JAIPUR GEMSTONE-Quartz mala Natural Brown Quartz Japa Mala with 108 Prayer Beads for Unisex

Brown quartz is a color-variety of crystalline quartz. It ranges from a light yellowish brown to a brown thatis so dark that it appears tobe black. Less-desirable specimens have a grayish brown color. ... It is often found in large crystals of excellent transparency with few inclusions.