Schöllhornite
Schöllhornite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Na₀.₃CrS₂·H₂O.
It crystallizes in the hexagonal crystal system.
Key properties: specific gravity 2.7; Submetallic (synthetic) luster; optically uniaxial.
IMA symbol Slh, IMA status: approved, named in 1984.
Found in an enstatite achondrite meteorite with other chromium-rich minerals, probably formed by terrestrial weathering of caswellsilverite.
It is found associated with Caswellsilverite, daubréelite, titanoan troilite, ferromagnesian alabandite, oldhamite, kamacite, perryite.
The mineral was named to honor Professor Robert Schöllhorn, Inorganic Chemical Institute, Münster University, Münster, Germany.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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