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highly variable Chalcedony spheres are almost geode-like in appearance and one can clearly see the process of geode or agate formation in progress in each specimen
Pure fluorite is clear
Amethyst has been sought after since ancient times as a gemstone and decorative object
with particularly high shine or uniquely shaped pieces prized by collectors
A relatively new and exciting addition to the mineral world
Fish Fossil - Knightia Eoceana Iceland Spar highly variable Chalcedony spheres areDuring the Eocene, 40 50 million years ago, vast shoals of freshwater fish inhabited a large shallow inland sea across the American West. The herring like fish of the genus Knightia were far and away the most abundant freshwater fish during this era, and because of this they are one of the most frequently found vertebrate fossils on earth. Originating from the famed Green River Formation in Wyoming, fossils of Knightia eocaena and their close
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