<a href="https://en.wikipedia.org/wiki/Stishovite" class="extiw" title="en:Stishovite">Stishovite</a> - Place of discovery: Nördlinger Ries, Germany
<a href="//commons.wikimedia.org/wiki/User:Raymond" title="User:Raymond">Raimond Spekking</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>