Darwin Glass Mix vietnam 65 carat black opal is

65 carat black opal is from the famous Lightning Ridge field in New South Wales Australia

unknown species found at milton near Swansea on Tasmania

Agatized beautifully with well defined fronds

The enamel is in good condition

It comes from Coober Pedy in South Australia

Darwin Glass Mix vietnam 65 carat black opal isThe day it rained glass. Around 800 thousand years ago a large nickel iron meteorite that was once part of the core of an ancient planet slammed into the isolated west coast of Tasmania south of Queenstown, forming a large impact crater. This big old lump of space rock was travelling at an estimated 22 thousand kilometers per second. Before it had even hit the ground the heat and pressure waves generated from its passage through the Earths atmosphere