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Nitratine

Year of discovery: 1845 (Tarapacá region, Chile), 1973 (Japan)

Locality list: A locality of nitratine

• NaNO₃
• [Na⁺][NO₃]^-

• Class: Nitrate
• Soluble in: Water
• Magnetism: Diamagnetic
• Taste: Cooling
• Deliquescent (Slightly)

• Na => K: Nitre

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

• Cleavage: Perfect on {1011} (3 planes), Imperfect on {0112} and {0001} (4 planes)
• Hardness: 1.5-2
• Density: 2.3

• System: Trigonal
• Group: (-3)m, R(-3)c
• Lattice: a=5.1, c=16.8