Uruguay Amethyst Heart AM1290 Cerussite forming in an array of

forming in an array of fascinating crystal formations and bizarre twinning habits

From the mysterious and rich lands of India

on first glance seems to be octahedrons

one can be forgiven for this

Uruguay Amethyst Heart AM1290 Cerussite forming in an array ofLocality: Cataln Grande, Artigas Department, Uruguay Dimension: Weight: About 160 million years ago, when tectonic plates were rifting Africa and South America apart as the Atlantic Ocean opened, one of the worlds great flood basalt events was occurring. Basalts flowed from the rift, producing stratified lava flows thousands of feet thick in Brazil and nearby Uruguay. Within these flows, gas bubbles and lava tubes created cavities that were first