Meteorite**Desert Lybian Glass**1.015 Kilo's Massive Individual, Impactite!!!

Description

Hello up for sale is Desert Lybian Glass, known as an Impactite or Tektite.  This massive individual weighs 1,015 grams and very good quality piece. Scientists believe Libyan Desert Glass came from space. Geologists believe Libyan Desert Glass formed fast. It happened when extraterrestrial materials entered Earth's atmosphere at a very high speed. Then, they heated up. The new “smoking gun” for understanding the origin of the Libyan desert glass is evidence of an unusual mineral called reidite. Reidite only forms during a meteorite impact, when atoms in the mineral zircon are forced into a tighter arrangement. This Tektite comes with 2 COA cards, one from me Streaming Meteorites and one from Mark Lyon. Thanks for your interest and take care.
NOTE: This is not a meteorite, but it was formed from a massive meteorite impact!!
Cosmos Magazine says:
These enriched minerals then solidified in the Libyan Sahara desert. This explains why Libyan Desert Glass is usually found within the area's desert sand. Libyan Desert Glass isn't only fascinating to look at with its golden color and interesting properties. It can also potentially teach us a lot about our planet's past.
In the remote desert of western Egypt, near the Libyan border, lie clues to an ancient cosmic cataclysm. Libyan desert glass is the name given to fragments of canary-yellow glass found scattered over hundreds of kilometres, between giant shifting sand dunes.
Interest in Libyan desert glass goes back more than 3,000 years. Among items recovered from King Tut’s burial chamber
The new “smoking gun” for understanding the origin of the Libyan desert glass is evidence of an unusual mineral called reidite. Reidite only forms during a meteorite impact, when atoms in the mineral zircon are forced into a tighter arrangement.
Such high-pressure minerals are a hallmark of a meteorite impact, and do not form during airbursts.
Zircon is a common mineral in granite, sandstone and other rock types. It is known from Earth, the Moon, Mars, and various meteorites. It is widely used for dating when rocks formed.
Zircon is also useful when searching for evidence of shock deformation caused by a meteorite impact. At low shock intensity, zircon deforms by bending of the crystal. It is like bending a plastic spoon to the point where it deforms but does not break.
As the shock intensity increases, zircon further responds in several unique ways and at extreme pressures, reidite forms.
If the rocks then get hot, zircon will recrystallise. This results in the formation of a network of new, tiny interlocking grains. Above 1,700℃ zircon ultimately breaks down to zirconia.
Libyan desert glass contains many zircon grains, all smaller than the width of a human hair. While most reacted to zirconia due to the heat, about 10% preserve evidence of former reidite. But the thing is, reidite is no longer present.
Reidite is not stable when hot, and reverts back to zircon above 1,200℃. It only gets preserved if shocked rocks do not melt. So it takes a specialised technique called electron backscatter diffraction to nut out whether reidite once existed in shocked zircons that got hot.
A meteor impact
Reidite is rare and only reported from meteorite impact sites. It is found in material ejected from craters and in shocked rocks at craters.
Prior studies have found evidence of former reidite within zircon from impact melt, similar to how it was identified in Libyan desert glass.
A 100 megaton airburst should occur every 10,000 years. If this size event is supposed to have caused Libyan desert glass to form, the geological record does not support the idea. The reidite fingerprint points to a meteor impact as the only option.
Outstanding mysteries about Libyan desert glass still remain, such as the location of the source crater, its size, and determining if it has eroded away.