Catalog Search Guide
You can search our catalog using different mineral attributes. For example, you can search by color such as green, yellow or purple, or by chemical elements such as uranium, calcium or iron, or by mineral groups such as phosphate, silicate or carbonate. You can also filter by crystal habit like crystal, geode or crystal on matrix, by specimen size such as thumbnail, small, medium or cabinet, and by features such as radioactive or fluorescent minerals.
Amethyst
Amethyst is the purple variety of quartz, colored by trace iron within its crystal lattice combined with natural irradiation. It ranges from pale lilac to deep violet, sometimes flashing red or blue highlights in the finest "Deep Siberian" grade, and typically forms as hexagonal prisms terminating in rhombohedral faces, often showing Brazil law twinning.
Classic geode-forming localities include Rio Grande do Sul and Ametista do Sul in Brazil, source of giant "cathedral" geodes, and Artigas, Uruguay, prized for its saturated "grape jelly" color. Veracruz (Las Vigas), Mexico yields elegant slender points, while Thunder Bay, Ontario is famous for red hematite-stained crystals. In Africa, Zambia's Mwinilunga District produces raspberry-purple hydrothermal-vein material, alongside Namibia's chevron-patterned crystals from the Brandberg area and South Africa's spiky "cactus quartz." Historic European sources include Mursinka in the Russian Urals and Maissau, Austria.
Collectors seek amethyst for its striking color zoning, twin-law patterns, and locality-specific habits — from Brazilian and Uruguayan geodes to Congo's large, richly colored clusters and Madagascar's reddish-purple crystals. Once ranked among the cardinal gems alongside diamond and emerald, amethyst remains a cornerstone of any serious quartz-variety collection.
AMETHYST SCEPTERS & ANKERITE – Rare & Large Violet Crystal Cluster from Sardinia, Italy
