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.

Scenic Jasper

Scenic Jasper

A patterned jasper whose bands and inclusions create miniature landscapes of deserts, mountains, and skies within the stone.

mineral

Cat's Eye Labradorite

A labradorite feldspar cut to show a moving band of light (chatoyancy), sometimes combined with labradorescent color flashes.

gemstone
Dryhead Agate

Dryhead Agate

A banded fortification agate from the remote Dryhead area of south-central Montana, prized for warm concentric rings.

gemstone
Condor Agate

Condor Agate

A vividly banded fortification agate from Argentina prized for its bold red, gold and white concentric patterns.

gemstone
Tiger's Eye

Tiger's Eye

A golden-brown chatoyant quartz with a shimmering silky band of light, formed when quartz replaces fibrous crocidolite.

gemstone
Rhyolite

Rhyolite

A fine-grained, silica-rich volcanic rock that is the extrusive equivalent of granite, often pale, banded, or flow-textured.

igneous

Double Flow Obsidian

Obsidian formed from two merged lava flows, producing a stone with two distinct bands of sheen or color.

igneous
Cat's Eye Green Tourmaline

Cat's Eye Green Tourmaline

Green tourmaline cut as a cabochon to show a sharp moving band of light (chatoyancy) caused by fine parallel inclusions.

gemstone
Cherry Creek Jasper

Cherry Creek Jasper

A landscape-patterned Chinese jasper prized for warm cherry-red, cream, and green bands resembling painted scenery.

mineral

Cat's Eye Morganite

Pink beryl (morganite) that shows chatoyancy, a moving band of light, when cut as a cabochon, thanks to parallel tube inclusions.

gemstone
Cave Creek Jasper

Cave Creek Jasper

An opaque jasper from the Cave Creek area of Arizona, prized for earthy mottled and banded patterns in warm desert tones.

mineral
Teepee Canyon Agate

Teepee Canyon Agate

A fortification agate from the Black Hills of South Dakota, known for tight, colorful banding closely related to the famous Fairburn agate.

gemstone