Montdorite
Comments: Pale green fine granular montdorite in iron-stained matrix. Location: Charlunnes, Mont Dore, Puy-de-Dome, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
GRapi = 88.32 (Gamma Ray American Petroleum Institute Units) Concentration of Montdorite per GRapi unit = 1.13 (%)
Estimated Radioactivity from Montdorite - barely detectable
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