Erythrosiderite

erythrosiderite

kremersite

molysite

rinneite

Images

Formula: K₂Fe³⁺Cl₅.H₂O
Hydrated chloride
Crystal System: Orthorhombic
Specific gravity: 2.372 measured
Colour: Ruby-red to red, brownish red; brown-red or yellowish in transmitted light
Solubility: Very deliquescent, readily soluble in water
Environments

Fumeroles
Salt deposits

Localities

At Staßfurt, Salzlandkreis, Saxony-Anhalt, Germany, erythrosiderite occurs rimming rinneite in bedded salt deposits (HOM).

At the type locality, Mount Vesuvius, Metropolitan City of Naples, Campania, Italy, erythrosiderite occurs in active volcanic fumaroles, associated with kremersite, hematite and molysite (HOM).
Erythrosiderite from Vesuvius - Image

At the Kansk-Taseev depression, Siberia, Russia, erythrosiderite occurs rimming rinneite in bedded salt deposits (HOM).

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