Amethyst is a variety of quartz and its chemical makeup is composed of silicon dioxide. Quartz is formed in lava, specifically when gas bubbles become trapped, allowing crystals to form inside the cavities created by the bubbles.
Stunning Amethyst and Agate Freeform - 2.8kg - High Grade - Deep Purple
Weight: 2830 grams
H 157 mm x W 127 mm x D 134mm