Mineralogy Database

Rhomboclase Mineral Data

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General Rhomboclase Information

Help on Chemical  Formula: Chemical Formula: (H5O2)+Fe+++(SO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 321.04 gm
   Iron      17.40 %  Fe   24.87 % Fe2O3
   Hydrogen   2.83 %  H    25.25 % H2O
   Sulfur    19.98 %  S    49.88 % SO3
   Oxygen    59.80 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: HFe3+(SO4)2•4(H2O)
Help on Environment: Environment: Secondary mineral formed by alteration of pyrite, especially in an arid climate; typically of post-mining origin.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1891
Help on Locality: Locality: Smolnik (Szomolnok), 16 km northeast of Roznava, Slovakia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for rhomb, for the typical rhombic crystal outline, and for to break, for its perfect cleavage.
Help on Name Pronunciation: Name Pronunciation: Rhomboclase + Pronunciation Say RHOMBOCLASE
Help on Synonym: Synonym: ICSD 4302
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