Category Organic minerals Strunz classification 10.CA.15 Crystal system Monoclinic | Formula
(repeating unit) C14H8O2 Dana classification 50.4.2.1 | |
 | ||
Crystal class Prismatic (2/m)
(same H-M symbol) | ||
Hoelite is a mineral, discovered in 1922 at Mt. Pyramide, Spitsbergen, Norway and named after Norwegian geologist Adolf Hoel (1879–1964). Its chemical formula is C14H8O2 (9,10-anthraquinone).
It is a very rare organic mineral which occurs in coal fire environments in association with sal ammoniac and native sulfur.
References
Hoelite Wikipedia(Text) CC BY-SA