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.

Leuco Garnet

The rare colorless variety of grossular garnet, a near-flawless transparent gem free of the iron and chromium that color most garnets.

gemstone
Pink Garnet

Pink Garnet

A trade name for pink garnets, mainly rhodolite, a rose-to-purplish pyrope-almandine blend prized for its bright clean color.

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

Jelly Garnet

Jelly Garnet is a translucent grossular garnet whose soft, glassy, gummy-looking body gives it a jelly-like appearance.

gemstone
Star Garnet

Star Garnet

A rare almandine garnet that displays a four- or six-rayed star (asterism) from oriented rutile inclusions; the state gem of Idaho.

gemstone

Mint Garnet

A delicate pastel-green grossular garnet, lighter than tsavorite, most famously from the Merelani Hills of Tanzania.

gemstone
Tsavorite Garnet

Tsavorite Garnet

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

gemstone
Green Garnet

Green Garnet

An umbrella term for green members of the garnet group, including prized tsavorite, demantoid, and rare chrome-rich uvarovite.

gemstone
Mali Garnet

Mali Garnet

A rare grossular-andradite blend ('grandite') from Mali, prized for its high brilliance and golden-green to yellow color.

gemstone

Umbalite Garnet

A delicate pink to lavender garnet from Tanzania's Umba Valley, a pyrope-spessartine blend often marketed as a soft, light-toned rhodolite.

gemstone
Andradite Garnet

Andradite Garnet

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

gemstone
Black Garnet

Black Garnet

An opaque black garnet — typically titanium-bearing melanite andradite — historically cut for mourning and Victorian jewelry.

gemstone
Ceylon Garnet

Ceylon Garnet

Ceylon Garnet is a historic trade name for fine red almandine (and hessonite) garnet from the gem gravels of Sri Lanka.

gemstone
Ugrandite Garnet

Ugrandite Garnet

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

mineral

Gooseberry Garnet

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

gemstone
Bohemian Garnet

Bohemian Garnet

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

gemstone
Orange Garnet

Orange Garnet

A trade term for orange garnets, mainly manganese-rich spessartine and the brownish hessonite variety of grossular.

gemstone

Montana Garnet

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

gemstone
Spessartite Garnet

Spessartite Garnet

A manganese aluminum garnet glowing in vivid orange to reddish-orange tones, with the finest called mandarin garnet.

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
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
Demantoid Garnet

Demantoid Garnet

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

gemstone

Bekily Garnet

A rare color-change garnet from Bekily, Madagascar, shifting from bluish-green in daylight to purplish-red under warm light, including the famed blue garnets.

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