Rock & Mineral Encyclopedia

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

Hydrogrossular Garnet

A water-bearing massive grossular garnet, usually green or pink, widely used as a tough jade-like carving stone.

A creamy pink-and-white chalcedony from Madagascar containing flower-like plume inclusions that resemble blossoms suspended in stone.

A general term for light-colored, fine-grained volcanic rocks rich in quartz and feldspar, like rhyolite.