Rock & Mineral Encyclopedia

Search and identify 1,000+ rocks, minerals, crystals, and gemstones — with properties, formation, colors, hardness, and how to tell them apart.

Gold

A dense, soft, intensely yellow native metal valued for millennia in coinage, jewelry, and electronics.

A trade name occasionally used for golden-yellow beryl (golden beryl or heliodor), the iron-colored yellow variety of the emerald mineral.

A warm golden-yellow elbaite tourmaline colored by manganese, ranging from honey to bright canary tones.

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

A warm mustard-to-ochre yellow jasper colored by iron, valued by lapidaries for its rich, earthy golden tone.

A warm mustard to brownish-yellow tourmaline, colored by iron or manganese, sitting between yellow and brown dravite tones.