Amethyst Druse | Brasilien Ball eine ausgestorbene Gruppe von Meeresreptilien

eine ausgestorbene Gruppe von Meeresreptilien

Description: Cut and polished on one side to reveal the bed of dark purple crystals

its orientation in the ground

Polished on the side

and lifestyle of these Jurassic crinoids

Amethyst Druse | Brasilien Ball eine ausgestorbene Gruppe von MeeresreptilienOrigin: Brazil Size: H38. 5cm W30cm D28cm Weight: 34. 3 kg Description: An amethyst geode with a hollow, concave shape, with gradients of dark purple amethyst. Additional Information: Amethyst is a transparent, coarse grained variety of the silica mineral quartz, prized for its purple color. Its physical properties are similar to those of quartz, but it contains more iron oxide than any other type of quartz, and experts believe its color comes from