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Boothite

Year of discovery: 1903 (Alma mine, USA), 1963 (Japan)

Locality list: A locality of boothite

• CuSO₄,7H₂O
• [Cu(H₂O)₆]²⁺[SO₄]^2-,H₂O

• Class: Melanterite group
• Class: Sulfate - Hydrate
• Soluble in: Water
• Dehydrate to Chalcanthite.

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

• 7H₂O => H₂O: Poitevinite
• 7H₂O => 3H₂O: Bonattite
• 7H₂O => 5H₂O: Chalcanthite

• Color: Pale blue
• Streak: Pale blue
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Imperfect on {001} (1 plane)
• Hardness: 2-2.5
• Density: 2.1

• System: Monoclinic
• Group: 2/m, P2₁/c
• Lattice: a=14.2, b=6.5, c=10.8, β=106.0