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.

Ant Hill Garnet

Ant Hill Garnet

Small, bright chrome-pyrope garnets famously brought to the surface by harvester ants on the Navajo lands of Arizona.

gemstone

Montana Garnet

Montana Garnet is red almandine recovered from Montana placer gravels, often alongside the state's famous sapphires.

gemstone
Almandine Garnet

Almandine Garnet

The most common garnet, an iron aluminum silicate in deep red to brownish-red hues, used as a gem and an industrial abrasive.

gemstone
Hessonite Garnet

Hessonite Garnet

The cinnamon-to-honey colored variety of grossular garnet, prized in jewelry and revered as the gem 'gomed' in Vedic astrology.

gemstone
Champagne Garnet

Champagne Garnet

A soft brownish-golden garnet named for its champagne color, usually a malaia-type pyrope-spessartine blend prized for warm, neutral tones.

gemstone
Adirondack Garnet

Adirondack Garnet

Adirondack Garnet is large, dark-red almandine from New York's Gore Mountain, the world's most famous industrial garnet abrasive source.

mineral
Mandarin Garnet

Mandarin Garnet

The intensely glowing orange variety of spessartine garnet, prized for its pure 'Fanta-orange' fire and high brilliance.

gemstone
Bohemian Garnet

Bohemian Garnet

Small, intensely red chrome-pyrope garnets from the Czech Bohemian region, famous for densely set antique Victorian jewelry.

gemstone
Melanite Garnet

Melanite Garnet

The titanium-rich black variety of andradite garnet, with a brilliant resinous luster prized for mourning and statement jewelry.

gemstone
Color Change Garnet

Color Change Garnet

A rare garnet that dramatically shifts color from greenish in daylight to reddish under lamplight, rivaling alexandrite.

gemstone
Mozambique Garnet

Mozambique Garnet

An abundant, brightly colored pyrope-almandine garnet from East Africa, valued for its clean, raspberry-to-red gems at accessible prices.

gemstone
Pyralspite Garnet

Pyralspite Garnet

Pyralspite is the aluminum garnet series uniting pyrope, almandine, and spessartine, covering most red, orange, and purple gem garnets.

mineral
Topazolite Garnet

Topazolite Garnet

A rare yellow to golden variety of andradite garnet, the topaz-colored cousin of green demantoid, prized for high dispersion and brilliance.

gemstone
Idaho Star Garnet

Idaho Star Garnet

Idaho's official state gem: a dark almandine garnet showing a four- or rare six-rayed star from oriented rutile inclusions.

gemstone
Ugrandite Garnet

Ugrandite Garnet

Ugrandite is the calcium garnet series uniting uvarovite, grossular, and andradite, including tsavorite and the fiery demantoid.

mineral
Demantoid Garnet

Demantoid Garnet

A rare green andradite garnet famed for fire exceeding diamond and distinctive horsetail inclusions in Russian stones.

gemstone
Chocolate Garnet

Chocolate Garnet

A rich brown variety of andradite (or grossular-andradite) garnet, marketed for its warm chocolate color and notable brilliance.

gemstone
Rhodolite Garnet

Rhodolite Garnet

A purplish-red to raspberry garnet that is a natural blend of pyrope and almandine, prized for its bright rose-violet color.

gemstone
Tsavorite Garnet

Tsavorite Garnet

A brilliant green grossular garnet colored by chromium and vanadium, rivaling emerald with superior brilliance and durability.

gemstone
Andradite Garnet

Andradite Garnet

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

gemstone

Gooseberry Garnet

Gooseberry Garnet is a soft green grossular garnet named for its resemblance to the pale, translucent green of ripe gooseberries.

gemstone
Uvarovite Garnet

Uvarovite Garnet

The rare calcium-chromium garnet, famous for its sparkling emerald-green druzy crusts of tiny crystals, the only consistently green garnet.

mineral
Merelani Mint Garnet

Merelani Mint Garnet

A delicate vanadium-colored mint-green grossular garnet from the Merelani Hills of Tanzania, the source of tanzanite.

gemstone
Hot Pink Tourmaline

Hot Pink Tourmaline

An intensely saturated hot-pink to magenta elbaite tourmaline, among the most vivid and eye-catching of all pink rubellites.

gemstone