Browse Rocks by Color, Type & Hardness

Narrow down an unknown specimen by the things you can observe: its color, whether it shines, what kind of rock it is, and how hard it is. Every list links to a full identification guide with photos and home tests.

Rocks by color

The fastest way to start when all you know is what it looks like.

Black rocks91 White rocks89 Gray rocks143 Brown rocks128 Green rocks126 Pink rocks79 Yellow rocks110 Red rocks79 Blue rocks67 Purple rocks32 Orange rocks35 Clear rocks54 Multicolored rocks34

Shiny rocks by color

Metallic and glassy stones, the ones most often mistaken for something valuable.

Shiny black rocks60 Shiny white rocks53 Shiny gray rocks85 Shiny brown rocks83 Shiny green rocks101 Shiny pink rocks66 Shiny yellow rocks97 Shiny red rocks53 Shiny blue rocks66 Shiny purple rocks29 Shiny orange rocks33

Rock types

Igneous, sedimentary and metamorphic rocks, plus minerals, gemstones and metals.

Types of Igneous Rocks32 Types of Sedimentary Rocks29 Types of Metamorphic Rocks19 Minerals A to Z174 Gemstones28 Metals & Alloys16

Mineral groups

Quartz varieties, silicates, sulfides, carbonates and other families.

Silicate Minerals29 Quartz Varieties16 Semi-Precious Stones13 Precious Stones5 Sulfide Minerals6 Phosphate Minerals5 Native Element Minerals4 Carbonate Minerals4

Mohs hardness

Already done a scratch test? Jump straight to the minerals at that hardness.

Mohs 118 Mohs 254 Mohs 360 Mohs 431 Mohs 562 Mohs 696 Mohs 773 Mohs 88 Mohs 93 Mohs 101

Not sure what you found?

Snap a photo with StoneSnap and get an instant match with properties, value estimates and look-alikes — free to try.