Formula: Na2NaMn2Mg2(Al,Fe)2(PO4)6
Origin of name: after locality Qinghe County, Xinjiang Uygur Autonomous Region, China
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 11.85, b = 12.411, c = 6.421, β = 114.45°
Colour: Jade green to light yellowish green
Diaphaneity: Semitransparent
Luster: Vitreous
Habit: Crystals short prismatic or tabular, to 4 mm, acicular
Hardness: 5.5
Specific gravity: 3.718
Cleavage: 1; {010} imperfect
Tenacity: Brittle, conchoidal fracture
Streak:
Synonyms/varieties:
Comments:
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