Darwin Glass/Darwinite 5.04g

Origin: Darwin Crater, Western Tasmania, Australia, Type: Impactite Weight: 5.04g
Size: 3.8x2.1x0.8cm, State: Intact with a couple minor reflections 
Darwin glass, tasmanite or tasmanian black glasses, one of the types of tasmanian tektites, is a natural glass found south of Queenstown in West Coast, Tasmania. It takes its name from Mount Darwin in the West Coast Range, where it was first reported, and later gave its name to Darwin Crater, a probable impact crater, and the inferred source of the glass.