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Trona

Year of discovery: 1773 (World), 2008 (Japan)

Locality list: A locality of trona

• Na₃H(CO₃)₂,2H₂O
• [Na⁺₃[H⁺][(CO₃)₂]^4-,2H₂O

• Class: Carbonate - Hydrate
• Soluble in: Water, HCl (with bubbles), HNO₃ (with bubbles), H₂SO₄ (with bubbles)
• Fluorescence: UV excitation (Blue-Pale yellow-Orange), Phosphorescence

• NaH => Ca: Pirssonite

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

• Cleavage: Perfect on {100} (1 plane), Indistinct on {(-1)11} and {001} (2 plane)
• Hardness: 2.5
• Density: 2.1

• System: Monoclinic
• Group: 2/m, I2/a
• Lattice: a=20.1, b=3.5, c=10.3, β=103.1