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
Jade

Jade

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

gemstone
Green Jade

Green Jade

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

gemstone
Transvaal Jade

Transvaal Jade

A massive green-to-pink hydrogrossular garnet from South Africa used as a jade simulant, not a true jade.

gemstone
Hydrogrossular Garnet

Hydrogrossular Garnet

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

gemstone
Jadeite

Jadeite

The rarer and more valuable of the two jade minerals, prized for its translucent emerald-green 'imperial' color and extreme toughness.

gemstone
Serpentine

Serpentine

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

mineral
Aventurine

Aventurine

A translucent quartz speckled with glittery mineral inclusions that produce a shimmering aventurescence, most often green.

crystal
White Garnet

White Garnet

The rare colorless-to-white grossular garnet, also called leuco garnet, prized by collectors for its purity and unusual lack of color.

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
Serpentinite

Serpentinite

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

metamorphic
Verdite

Verdite

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

metamorphic
Charoite

Charoite

A rare swirling lilac-to-violet silicate found only in Siberia, prized for its fibrous, chatoyant purple patterns.

mineral
Chrysoprase

Chrysoprase

A translucent apple-green chalcedony colored by nickel, the most prized green variety of the quartz family.

gemstone
Amazonite

Amazonite

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

mineral
Mariposite

Mariposite

A green, gold-associated metamorphic rock made of chrome-rich mica and quartz, named for Mariposa County in California's gold country.

metamorphic
Garnierite

Garnierite

A vivid green hydrous nickel-magnesium silicate that is a major ore of nickel, mined from weathered ultramafic rocks.

mineral