rockon-ro: CELESTITE (Strontium Sulfate) crystals from Bombetoka Bay, Mahajanja, Madagascar.
malformalady: A vivid turquoise blue Chrysocolla exterior has been partially polished to reveal an amazing interior of velvety concentric bands of darker and lighter green chatoyant Malachite. Origin: Congo
mineralia: Lazurite from Afghanistan by The Arkenstone
themineralogist: Amethyst with Hematite inclusions (by RedLynks)