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Rozenite

Year of discovery: 1960 (Ornak mountain, Poland), 1972 (Japan)

Locality list: 10 localities of rozenite

• FeSO₄,4H₂O
• [Fe²⁺][SO₄]^2-,4H₂O

• Class: Rozenite group
• Class: Sulfate - Hydrate
• Soluble in: Water
• Taste: Astringent
• Formed on dehydration of Melanterite below 21 degree under dry condition.

• Fe => Co: Aplowite
• Fe => Zn: Boyleite
• Fe => Mn: Ilesite
• Fe => Mg: Starkeyite

• 4H₂O => H₂O: Szomolnokite
• 4H₂O => 5H₂O: Siderotil
• 4H₂O => 6H₂O: Ferrohexahydrite
• 4H₂O => 7H₂O: Melanterite

• Color: Colorless, White
• Streak: White
• Luster: Earthy
• Diaphaneity: Transparent-Translucent

• Hardness: 2-3
• Density: 2.2

• System: Monoclinic
• Group: 2/m, P2₁/n
• Lattice: a=5.8, b=13.7, c=8.0, β=90.4