Formula : Mn2+Be[(OH,F)/PO4]
System: monoclinic Hardness:5 Rarity:rare
Strunz id:VII/B.1-50 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Named after Heikki Allen Väyrynen (1888-1956), professor of mineralogy, Technical High School, Helsinski (Finland).
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