Hoelite is a

mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2 ...

, discovered in 1922 at Mt. Pyramide, Spitsbergen, Norway and named after Norwegian geologist

Adolf Hoel Adolf Hoel (15 May 1879 – 19 February 1964) was a Norwegian geologist, environmentalist and Polar region researcher. He led several scientific expeditions to Svalbard and Greenland. Hoel has been described as one of the most iconic and influentia ...

(1879–1964). Its chemical formula is C₁₄H₈O₂ (

9,10-anthraquinone Anthraquinone, also called anthracenedione or dioxoanthracene, is an aromatic organic compound with formula . Isomers include various quinone derivatives. The term anthraquinone however refers to the isomer, 9,10-anthraquinone (IUPAC: 9,10-dioxo ...

). It is a very rare

organic mineral An organic mineral is an organic compound in mineral form. An organic compound is any compound containing carbon, aside from some simple ones discovered before 1828. There are three classes of organic mineral: hydrocarbons (containing just hydrog ...

which occurs in coal fire environments in association with

sal ammoniac Salammoniac, also sal ammoniac or salmiac, is a rare naturally occurring mineral composed of ammonium chloride, NH4Cl. It forms colorless, white, or yellow-brown crystals in the isometric-hexoctahedral class. It has very poor cleavage and is ...

and

native sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula ...

References

Organic minerals Monoclinic minerals Minerals in space group 14 Minerals described in 1922 {{mineral-stub