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.

Rose Quartz

Rose Quartz

The soft pink, usually cloudy variety of quartz colored by trace titanium or microscopic inclusions, popular for carvings and beads.

crystal
Star Rose Quartz

Star Rose Quartz

Rose quartz that displays a six-rayed star (asterism) when cut as a cabochon, caused by microscopic rutile-like inclusions.

gemstone

Regency Rose Agate

A prized plume agate with rose-pink and red feathery inclusions suspended in clear chalcedony, from the western U.S.

gemstone
Strawberry Quartz

Strawberry Quartz

A pink-to-red quartz colored by iron oxide inclusions that create a speckled, strawberry-like appearance within clear crystal.

crystal
Lithium Quartz

Lithium Quartz

A quartz crystal containing pink to lilac lithium-bearing mineral inclusions that give a soft cloudy lavender or rose coloration.

crystal

Amegreen

A natural bicolor quartz blending amethyst purple with prasiolite green in a single crystal, prized as a metaphysical heart-crown stone.

crystal
Thulite

Thulite

A pink, manganese-rich variety of zoisite used as an ornamental gemstone, often mottled with white quartz and grey matrix.

gemstone
Citrine

Citrine

The golden-yellow variety of quartz, ranging from pale lemon to deep madeira amber, often produced by heating amethyst.

gemstone
Flower Jasper

Flower Jasper

A jasper whose radiating mineral clusters form flower-like rosettes scattered across an earthy background.

mineral
Metaquartzite

Metaquartzite

A hard, tough metamorphic rock of fused quartz grains, formed by recrystallizing quartz sandstone under heat and pressure.

metamorphic
Lemon Quartz

Lemon Quartz

A vivid greenish-yellow quartz, usually heat-treated or irradiated, prized for its clean clarity and bright lemon color.

crystal
Prasiolite

Prasiolite

A pale green variety of quartz, usually created by heat-treating amethyst, often marketed as green amethyst.

gemstone
Green Quartz

Green Quartz

A green variety of macrocrystalline quartz, usually the heat- or radiation-altered prasiolite, prized for its soft mint hue.

crystal