Mineral Group · 1 mineral
Extraterrestrial Materials
Minerals
1
Hardness
5 Mohs
Crystal System
Cubic
What Defines the Space Group
Materials with origins beyond Earth. Iron meteorites are fragments of ancient protoplanetary cores, 4.5 billion years old. Tektites and moldavite are terrestrial rock melted by meteorite impacts and ejected into the atmosphere. Libyan desert glass may have formed from a cosmic airburst over the Sahara.
