Darwin glass ,Tasmania's moldavite, this rare tektite glass is found on Tasmania's west coast. Rare elongated shapes up to 7 cm long. This glass contains a portion of the original nickel iron meteorite and recently ancient life was found in its vesicles by Dr Kieren Howard. Therareandbeautiful
Tested at Cal tech University to be Pure silica quartz impact glass unlike the Libyan desert Impact glass that is not % pure silica quartz, Libyan is 98 % almost pure silica quartz. The graph shows pure silica & oxygen.