Crystals and other natural minerals for collecting, etc. Many beautiful crystal and mineral specimens for purchase for your collection or resale. An aragonite crystal formation is pictured to the left. All Items Here are all the products in this category: • Amethyst clusters, Brazil • Amethyst, single point, Brazil • Amethyst, sm. Africa • Aragonite crystals, CA • Chevron amethyst, sm. • Dogtooth calcite clusters, UT • Iron pyrite, "fool's gold • Molybdenite, ID • Moonstone, "WY Opal" nodules • Octahedron, fluorite, small • Phantom chevron amethyst • Rough: Moonstone, India • Rough: Sunstones, India