3.9" Rough Purple Amethyst Crystal Cluster Mineral Specimen Brazil Self Standing Captorhinus providing key insights into the

providing key insights into the evolutionary history

geological history shows periods when Aragonite was the dominant form

Cobaltoan Calcite Geological Description: Calcite is a calcium carbonate mineral with a hardness of 3

and South America

named after the famous deposits near Chessy-les-Mines in Lyon

3.9" Rough Purple Amethyst Crystal Cluster Mineral Specimen Brazil Self Standing Captorhinus providing key insights into theLocation: Brazil Weight: 1 Pound 1. 5 Ounces Dimensions: 3. 9 Inches Long, 3. 4 Inches Wide, 3. 1 Inches Thick The item pictured is the one you will receive. Amethyst Amethyst is a naturally occurring purple variety of quartz celebrated for its striking color, crystal formations, and long standing popularity as a gemstone. Composed of silicon dioxide (SiO), amethyst forms under specific geological conditions that allow iron impurities and natural