Amethyst Tumbled Gemstones from Brazil - 20-40 mm - 1 LB. LOT Menu Flames Avg Size Range: (65 to

Avg Size Range: (65 to 75 millimeters)

Sometimes fire opals that do not display "color play" are referred to as jelly opals

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where trace amounts of chromium replace aluminum ions in kyanite crystals

Amethyst Tumbled Gemstones from Brazil - 20-40 mm - 1 LB. LOT Menu Flames Avg Size Range: (65 toQuantity: 1 pound Pieces measure approximately 20 40 millimeters. 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.