Rock & Mineral Encyclopedia

Search and identify 1,000+ rocks, minerals, crystals, and gemstones — with properties, formation, colors, hardness, and how to tell them apart.

Andradite Garnet

The calcium-iron garnet species, ranging from brilliant green demantoid to golden topazolite and jet-black melanite.

Vanadium-colored tourmaline, including the species vanadium dravite, producing rich emerald-green hues similar to chrome tourmaline.

The colorless to milky-white variety of beryl, known mineralogically as goshenite and once used to imitate diamond and other gems.