Rock & Mineral Encyclopedia

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

Mint Tourmaline

A soft, pastel minty-green tourmaline prized for its fresh, light color, a delicate variety of green elbaite.

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

A common potassium feldspar identical in composition to orthoclase but more ordered, famous for its green gem variety amazonite.