Reidite is a very rare mineral undergoes high pressure and temperatures. It is commonly associated with meteorite impacts.
On Earth, reidite has been found only in seven crater impacts: the Chesapeake Bay Crater; Ries Crater ; Woodleigh Crater in Western Australia Rock Elm Crater .
In 2015 an occurrence of reidite was reported from the Precambrian structure in North West Scotland, further supporting its impact origin.
Libyan desert glass may show lattice deformation in zircon that is interpreted as evidence of this material having previously contained reidite, and as such constitutes strong evidence for its impact origin.