Rough Amethyst / 1-2" AVG - 1 KILO LOT tumbled gemstones for price comparison Ammolite is created when ammonite

Ammolite is created when ammonite fossils are buried in layers of sediment that prevent them from turning into calcite

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Rough Amethyst / 1-2" AVG - 1 KILO LOT tumbled gemstones for price comparison Ammolite is created when ammoniteQuantity: 1 kilogram Average size range: 1 to 2 inches Amethyst is a violet gemstone that occurs when quartz containing significant iron impurities and other trace elements undergoes natural geological irradiation over long periods of time, altering the color. Variations in color occur based on the amount of iron and the specific trace elements present in the original quartz.