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Goslarite

Year of discovery: 1847 (Rammelsberg mine, Germany), 1885 (Japan)

Locality list: 17 localities of goslarite

• ZnSO₄,7H₂O
• [Zn(H₂O)₆]²⁺[SO₄]^2-,H₂O

• Class: Epsomite group
• Class: Sulfate - Hydrate
• Soluble in: Water
• Magnetism: Diamagnetic

• Polymorph: Zincmelanterite (Monoclinic)

• Zn => Mg: Epsomite, Alpersite
• Zn => Mn: Mallardite
• Zn => Fe: Melanterite
• Zn => Cu: Boothite
• Zn => Co: Bieberite
• Zn => Ni: Morenosite

• 7H₂O => H₂O: Gunningite
• 7H₂O => 4H₂O: Boyleite
• 7H₂O => 6H₂O: Bianchite

• Color: Colorless, Pale brown
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Perfect on {010} (1 plane)
• Hardness: 2-2.5
• Density: 2.0

• System: Orthorhombic
• Group: 222, P2₁2₁2₁
• Lattice: a=11.8, b=12.1, c=6.8