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Indicolite Tourmaline crystal specimen
Weight: 119g
where the structure of carbon atoms change from graphite to diamond or lonsdaleite (hexagonal diamond)
It's a very textural piece
Mineral: Smoky Quartz with Hematite inclusions
Australite Tektite, 2.18g, South-Western Australia pyrite Finland Indicolite Tourmaline crystal specimenAustralites are tektites, a natural glass created during a meteorite impact. Australites formed about 700,000 800,000 years ago when a massive meteorite impacted Earth. The impact glass was blasted high into the upper atmosphere, where it cooled and began its descent back to Earth. As the tektites re entered our atmosphere, traveling at high velocity, aero dynamic ablation occurred, causing the outer surface of the tektite to melt away, leaving the
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