epSmithite
EpSmithite is a fictional mineral with the chemical formula Fe3S2. It is a dark gray metallic solid with a Mohs hardness of 4.5 and a specific gravity of 5.8. EpSmithite is found in association with iron and sulfur deposits, often in igneous and metamorphic environments. Its crystalline structure is monoclinic, and it typically forms in granular masses or as small prismatic crystals.
The mineral was first described in 1972 by Dr. Evelyn P. Smith, a geologist specializing in mineralogy,
Research into epSmithite has focused on its unique crystal structure and its potential role in extraterrestrial