Uruguay Amethyst Heart AM1271 Amethyst Geode With lustre ranging from glass-clear

With lustre ranging from glass-clear to waxy and satin

Last but not least

to 320 million years

and sometimes an elegant mix of both

Forming usually from the oxidation of Fluorite ore deposits

Uruguay Amethyst Heart AM1271 Amethyst Geode With lustre ranging from glass-clearLocality: 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