2.8" Polished Wild Horse Magnesite Slice - Arizona

This is a small, polished slice of wild horse magnesite that was collected from southeastern Arizona. It has been cut flat on both sides and polished to a mirror-like finish on one side.

Wild Horse Magnesite, also known as "Crazy Horse", is a semi-precious, brown-red and white gemstone that comes from near the Globe Copper Mine in southeastern Arizona. It is a metamorphic rock containing plumes of white magnesite, which often has a grey to brown mottled appearance within the surrounding red-brown, hematite-rich rock. This magnesite formation occurs under low grade metamorphism (200 to 320°C at low pressure) when magnesium-rich rock comes into contact with a carbonate-rich solution.
Magnesite & Hematite
Globe Copper Mine, Southeast, Arizona
2.8" wide, .2" thick