- sylvanite, krennerite, calaverite, altaite, montbrayite, melonite,
frohbergite, tetradymite, rickardite,
vulcanite and pyrite.
Petzite forms together...
- 05a Trogtalite, 05a Dzharkenite, 05a Gaotaiite, 05b Bambollaite; 10a
Frohbergite, 10a Hastite?, 10a Ferroselite, 10a Kullerudite, 10a Mattagamite, 10a...
- Fzs
Fairbankite Fbk
Ferroceladonite Fcel Fluorapophyllite-(Cs) Fapo-Cs
Frohbergite Frb
Fairchildite Fch
Ferrochiavennite Fcve Fluorapophyllite-(K) Fapo-K...
-
Marcasite group (Orthorhombic: Pnnm)
Marcasite FeS2,
Ferroselite FeSe2,
Frohbergite FeTe2, Hastite? CoSe2,
Mattagamite CoTe2,
Kullerudite NiSe2, Omeiite...
- (Cu5Pb5Bi7S18)
Fritzscheite (fritzscheite: 1865) 4.HB.15 [667] [668] [669]
Frohbergite (marcasite: 1947) 2.EB.10a [670] [671] [672] (IUPAC: iron ditelluride)...
