Rock Identifier

Rock & Mineral Encyclopedia

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

Nephrite

Nephrite

One of the two jade minerals, an amphibole prized for its extreme toughness and soft, waxy green hues used in carving for millennia.

gemstone
Serpentine

Serpentine

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

mineral

Green Jade

The classic green ornamental gem, either jadeite or nephrite, valued for millennia for its toughness and rich color, especially imperial green.

gemstone
Serpentinite

Serpentinite

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

metamorphic
Jade

Jade

A tough, prized ornamental gem that is actually two distinct minerals, jadeite and nephrite, revered for millennia in many cultures.

gemstone
Green Marble

Green Marble

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

metamorphic
Green Opal

Green Opal

A common opal colored green by nickel or chromium impurities, usually opaque and cut into cabochons and beads.

gemstone
Green Aventurine

Green Aventurine

A green quartz speckled with shimmering fuchsite mica that produces a glittering aventurescence, popular as an affordable ornamental stone.

mineral
Hydrogrossular Garnet

Hydrogrossular Garnet

A water-bearing massive grossular garnet, usually green or pink, widely used as a tough jade-like carving stone.

gemstone
Verdite

Verdite

A rich green, fuchsite-rich metamorphic rock from southern Africa, prized as a carving and ornamental stone.

metamorphic
Amazonite

Amazonite

The blue-green gem variety of microcline feldspar, often mottled with white, prized as an affordable ornamental stone.

mineral
Bloodstone Jasper

Bloodstone Jasper

A dark green jasper-chalcedony speckled with red iron-oxide spots, classically known as bloodstone or heliotrope.

mineral
Kambaba Jasper

Kambaba Jasper

A dark green-and-black stromatolite jasper patterned with swirling orbs, formed from fossilized ancient microbial colonies.

sedimentary