IMA mineral species

Rhomboclase

(H₅O₂)Fe³⁺(SO₄)₂ * 2H₂O

Sulfate mineral.

YellowGreenBlueGrayWhite & Clear

Properties

🔷 Orthorhombic✏️ streak white
Chemical formula(H₅O₂)Fe³⁺(SO₄)₂ * 2H₂O
ElementsH, O, Fe, S
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolRbc
Nickel–Strunz class7.CB.55

“—” means no reliable value in Wikidata yet. Check Mindat for full data.