Polished Dugway Geode Half DX231 gold sheen obsidian Scoria forms as part of

Scoria forms as part of a lava flow usually near the surface of the flow

Dimensions: 18 x 32 x 9 mm (bale is approx

Malachite Lion Carving

The most distinctive feature of moonstone is its adularescence

Polished Dugway Geode Half DX231 gold sheen obsidian Scoria forms as part ofDugway Geode Approx. Dimensions: 3. 5 x 3. 5 x 2" Approx. Weight: 474 grams Locality: Dugway Geode Beds, Juab County, Utah Includes three prong geode stand This piece reacts to short and long wave ultraviolet light, shown in the last two photos. Many portions of the inside of the geode glow a vibrant green. The fluorescence is due to trace amounts of uranium present in the quartz and chalcedony. Approximately 6 to 8 million years ago (Miocene epoch),