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.

Brecciated Jasper

Brecciated Jasper

A jasper made of angular fragments naturally cemented back together, typically showing red and brown pieces in a quartz matrix.

sedimentary

Outlaw Jasper

A boldly patterned western jasper in browns, reds, and golds, prized by lapidaries for its dramatic scenic and brecciated figures.

gemstone
Poppy Jasper

Poppy Jasper

An orbicular jasper with red and orange flower-like spots resembling poppies, famously from Morgan Hill, California.

mineral

Spiderweb Jasper

A jasper crossed by fine dark veins forming a spiderweb-like network, often a brecciated stone cemented by darker matrix.

mineral

Maligano Jasper

A rare Indonesian jasper from Sulawesi known for ghostly tube structures, brecciated patterns, and contrasting grey, red, and purple zones.

mineral

Stone Canyon Jasper

A warm-toned brecciated jasper from central California known for swirling browns, golds, and creams broken by darker seams.

gemstone

Imperial Jasper

A prized Mexican jasper known for pastel green, lavender, and cream orbicular patterns that take an exceptional polish.

mineral
Yellow Jasper

Yellow Jasper

An opaque yellow-to-golden variety of jasper, an iron-stained microcrystalline quartz prized for warm color and durable polish.

gemstone

Woodbine Jasper

An earthy-toned jasper with vine-like or scenic patterning, valued by lapidaries for warm browns, reds, and creams that polish to a smooth finish.

gemstone

Hells Canyon Jasper

A warm earth-toned jasper from the Hells Canyon region of the Oregon-Idaho border, prized for brecciated browns, reds, and creams.

gemstone
Ruin Agate

Ruin Agate

A fractured and re-cemented agate whose angular broken bands resemble crumbling walls and ruined cityscapes when polished.

gemstone

Dallasite Jasper

A green-and-white volcanic breccia from Vancouver Island, cemented by jasper and rich in epidote, popular as a regional lapidary stone.

gemstone