Nature's Treasure Chest
Opal - Gem Gallery - Smithsonian Institution
Amazing Dragons Vein Agate ~Green & Pink | Tophatter
Calcite “Cave Popcorn” formation, Arizona
American contraluz opal found in Opal Butte, Oregon ~ 4.6 x 4.4 x 1 cm ~ clear, transparent crystal body with a fiery gem-quality play of colour and a botryoidal jasper formation which forms a unique inclusion.
Incredible space stone seems like it has a nebula trapped inside
Impressive large cabinet specimen featuring large Halite crystals on pink Halite matrix!