Rock & Mineral Encyclopedia

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

London Blue Topaz

The deepest, most saturated blue grade of treated topaz, prized for its rich steely-blue color and durability in jewelry.

A softly patterned jasper in cream, gray, and tan whose markings can suggest lotus petals, popular for calm, neutral-toned jewelry.

A soft to medium pink elbaite tourmaline in rose hues, colored by manganese and prized for romantic jewelry.

A soft, lustrous white native metal with the highest electrical conductivity, used in jewelry, coinage, and industry.

The cinnamon-to-honey colored variety of grossular garnet, prized in jewelry and revered as the gem 'gomed' in Vedic astrology.

A dense, durable, silvery-white precious metal that resists corrosion, used in fine jewelry and catalytic converters.

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

A trade name for lightly saturated elbaite tourmalines in delicate pastel pinks, mints, peaches, and blues popular in modern jewelry.