Rhomboclase [ (H5O2)FeIII(SO4)2·2H2O ]

Material properties

Formula (H5O2)FeIII(SO4)2·2H2O
Abbreviation Rbc
Classifications Minerals containing SO4, Minerals containing H2O
IMA Status Grandfathered (pre-IMA), 1891
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Orthorhombic, Point group mmm, Space group Pnma (#62)
Tags Hydrated , Mineral, Sulphate

Composition

Element Atoms
O 12
Fe 1
S 2
H 9
Total: 24

Specimens of Rhomboclase

Name Owner Materials Phase purity Image
M0340 Pyrite / Szomolnokite CSIRO Pyrite, Quartz, Rhomboclase (5.3%), Szomolnokite 5.3
M0341 Pyrite / Szomolnokite CSIRO Pyrite, Rhomboclase (3.2%), Szomolnokite 3.2
M1872 Pyrite CSIRO Pyrite, Rhomboclase (1.6%), Szomolnokite 1.6