Nice Specimen

Dimensions: 23.6 x 22.2 x 15.7 mm max.
Name: HENBURY IMPACT GLASS
Class: Impactite
Country: Northern Territory, Australia
Date: This Find: 1979

The Henbury Meteorite Impact Glass

is generally found as frothy rock melt, created by the explosive impact of the nickel/ iron Meteorite at HENBURY METEORITE CRATERS. It's chemical composition is closely similar to subgreywackes and Australite tektites. These impact glasses give us an insight into the enormous forces occurring at a glimpse of a second at impact. It is in fact the compressed air in front of the meteorite which creates this unimaginable heat.

The Henbury Meteorite Craters

Discovered in 1922 by Prof. Arthur Alderman of the University of Adelaide. The Henbury craters were among the first in Australia to be recognised as being of impact origin. In addition to well-defined craters there is a strewn field of iron meteorite fragments. The area was extensively studied in the 1960's by Daniel Milton of the United States Geological Survey as a training area for the Apollo program. They are Australia's most studied impact craters (as opposed to astrobleme). Crater 3 is the only known terrestrial rayed crater..

The formation age of the craters is about 4,700 years, E.M. Shoemaker et al, Meteoritics, 1990, 25, p.409.

Is this really something special? You bet!

A rare piece of Henbury Glass,

not to be missed in any Aussie Collection!

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