[ Top ] [ Japanese ]

Kogarkoite

Year of discovery: 1973 (Mount Alluaiv, Russia), 1987 (Japan)

Locality list: No localities of kogarkoite

• Na₃SO₄F
• [Na⁺₃][F|SO₄]^3-

• Class: Sulfate - Fluoride
• Fluorescence: Short UV excitation (Pale blue), Long UV excitation (White)

• Color: Colorless, Pale blue
• Streak: White
• Luster: Vitreous
• Diaphaneity: Translucent

• Hardness: 3.5
• Density: 2.6

• System: Monoclinic
• Lattice: a=18.1, b=6.9, c=11.4, β=107.7