4.8" Rough Purple Amethyst Crystal Cluster Mineral Specimen Brazil Self Standing Coloborhynchus True rhinoceros ancestors

True rhinoceros ancestors

helping scientists understand early arthropod evolution

which dates back to the Cambrian period

often attaching to sedimentary rock substrates such as limestone or shale that provided stable surfaces for growth

4.8" Rough Purple Amethyst Crystal Cluster Mineral Specimen Brazil Self Standing Coloborhynchus True rhinoceros ancestorsLocation: Brazil Weight: 2 Pounds 8. 3 Ounces Dimensions: 4. 8 Inches Long, 4 Inches Wide, 3. 8 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