LIBYAN DESERT GLASS 303g Impactite (Great Sand Sea Glass) IMCA Sellers

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LIBYAN DESERT GLASS 303g Impactite (Great Sand Sea Glass) IMCA Sellers:
$445.00

LIBYAN DESERT GLASS: 303 GRAMSIMPACTITEAlso known as Great Sand Sea glassMostly made of lechatelieriteFound in areas in the Eastern Sahara(in the deserts of Eastern Libya and western Egypt)Fragments of desert glass can be found over areas of tens of square kilometers
Meteoritic origins have long been considered possible, and recent research links the glass to impact features, such as zircon breakdown, vaporized quartz and meteoritic metals, and to an impact crater.
Some geologists associate the glass with radiative melting from meteoric large aerial bursts, making it analogous to trinitite created from sand exposed to the thermal radiation of a nuclear explosion. Libyan Desert glass has been dated as having formed about 29 million years ago. Like obsidian, it was knapped and used to make tools during the Pleistocene.
The glass is nearly pure silica which requires temperatures above 1,600 °C to form – hotter than any igneous rock on Earth. However, few mineral relics survived from whatever caused the melting, including a form of quartz called cristobalite, a rarely occurring high-temperature mineral; and grains of the mineral zircon, although most have reacted to form a higher-temperature mineral called zirconia. Ideas about how the glass formed include melting during meteorite impact, or melting caused by an airburst from an asteroid or other object burning up high in Earth's atmosphere.
PURCHASE FROM ONE OF THE MOSTTRUSTED NAMES IN THE METEORITE ALWAYS, ADDITIONAL PICTURESAND VIDEO ARE AVAILABLE UPON US ACCEPTED FOR ALL WILL PAY FOR RETURN SHIPPING ON MOSTOF OUR PRODUCTSFOR ALL US CUSTOMERS
INCLUDED WITH PURCHASE:** 303g Impactite as pictured in this ad** Free US Shipping** Free Picture & Sticker Pack** My signed and serialized full-color COA backed by the IMCA, Meteorite Club, & the Meteorite Education & Trade Society
We are Topher and Sue Spinnato, owners of Topherspin Meteorites LLC. Topher is an internationally trusted meteorite educator, importer, collector, and dealer. He is also a proud member of the following associations:International Meteorite Collector's Association (IMCA #6236)The Meteorite Education & Trade Society (METS #6236)The Meteorite Club Pioneer MemberTopher is also known for his very popular Topherspin Meteorites YouTube Channel and Knowledge Bolide Weekly Online Hangout Series. Additionally, Topher is known for his active involvement in the annual Tucson Rock & Gem Show, where he is often streaming live events and also hosts the Meteorite Mansion.Sue is a collector of meteorites and is also a member of the International Meteorite Collector's Association. (IMCA #7294) She has always been a co-owner of Topherspin Meteorites, but became a full time partner in early 2021. Sue runs most of the daily operations for Topherspin Meteorites as well as serving as a project manager for our second company, which we will be launching in late 2023. With Sue joining the team full time, this gives Topher more time to develop the Topherspin Meteorites YouTube Channel and create more related content. Sue is also contributing a quarterly segment called the Metbull Update and has also collaborated with Topher on a few episodes of Conversations with Collectors, with more episodes coming soon.Please support our outreach efforts - Buy a meteorite!
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