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Blödite, Blodite

Year of discovery: 1821 (Ischler Salzberg, Austria), 1963 (Japan)

Locality list: A locality of blödite

• Na₂Mg(SO₄)₂,4H₂O
• (Na,K)₂Mg(SO₄)₂,4H₂O
• [Na⁺₂][Mg²⁺][(SO₄)₂]^4-,4H₂O

• Class: Sulfate - Hydrate
• Soluble in: Water

• Na => K: Leonite

• Mg => Zn: Changoite
• Mg => Ni: Nickelblödite (Nickelblodite)
• Mg => Ca: Wattevilleite

• Color: Colorless
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: No
• Hardness: 2.5-3
• Density: 2.2

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=11.0, b=8.2, c=5.5, β=100.4