Rock & Mineral Encyclopedia

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

Serpentine

A group of green magnesium silicate minerals with a smooth, waxy feel, often carved and sometimes sold as imitation jade.

A soft, talc-rich metamorphic rock with a soapy feel, easily carved and highly heat-resistant for cookware and sculpture.

A green, often mottled metamorphic rock formed by the hydration of mantle rocks, soft and waxy with a smooth, slippery feel.

The softest mineral on the Mohs scale, talc has a greasy, soapy feel and is the source of talcum powder and soapstone.

A green ornamental stone, often serpentine-rich marble or verde antique, valued for its rich green color and white veining.

A green-hued banded chalcedony, ranging from natural soft greens to brightly dyed commercial stones.