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The Mineral Romerite

Wickenburgite Mineral Picture

Romerite is a mineral which is formed by the process of oxidation of Pyrite, Pyrrhotite and Marcasite that are known as the iron sulfides. It is also often found with Rhomboclase, an iron sulfate. It was first found in Rammelsberg, Harz, Germany.

Origin

Romerite derived its name from the famous German geologist, Adolph Romer, who lived from 1809 to 1869.

Formula:
Fe2+Fe23+ (SO4) 4 · 14H2O

Physical Appearance
Romerite is often found in violet brown, yellow or brown color. It has a hardness of 3 to 3.5 and is seen in a triclinic system

Composition
Hydrogen-H2O 31,17%, H 3.49%
Oxygen- O 59.60%
Sulfur-SO3 39.93%, S15.99%
Iron-FeO 8.73%, Fe 20.92%,  Fe2O3 20.21%

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