Formula: Na5(CO3)(HCO3)3
Origin of name: for R. Wegscheider, chemist
Crystal system: triclinic
Crystal class: 1
Twinning:
Unit cell: a = 10.04, b = 15.56, c = 3.466, α = 91.917°, β = 95.817°, γ = 108.667°
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit: Crystals acicular to bladed, to 5 cm
Hardness: 2.5 to 3
Specific gravity: 2.34
Cleavage: 1; prismatic distinct
Tenacity: Conchoidal fracture
Streak: White
Synonyms/varieties:
Comments:
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