Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:WHEWELLITE
Formula:Ca(C2O4)
Crystal System:Monoclinic
Strunz Nr:9/A.01-10
References:AM 53 (1968), 455; AM 65 (1980), 327; MM 69 (2005), 77; HB5 (2003); AM 90 (2005), 1469
Type Locality:Havre, Montana, USA (?)

Whewellite, heart shaped twins, 1.7mm
Condorcet; Drôme, France, F - Photo & Coll. R. Martin
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