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Burkeite

Year of discovery: 1935 (Searles lake, USA), 1989 (Japan)

Locality list: A locality of burkeite

• Na₆(CO₃)(SO₄)₂
• [Na⁺₆][CO₃|(SO₄)₂]^6-

• Class: Sulfate - Carbonate
• Soluble in: Water
• Fluorescence: UV excitation (Pale yellow)

• Color: White, Gray
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Imperfect
• Hardness: 3.5
• Density: 2.6

• System: Orthorhombic
• Group: mmm, Pmmm
• Lattice: a=7.1, b=9.2, c=5.2