We are grateful to John White and Marie Huizing for procuring two photocopied articles from 1965 editions of Rocks and Minerals . The fir...
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Maret 23, 2016
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"Grenbelt,
"Maryland rockbridgeite" dufrenite Smithsonian "unknown mineral" "Goddard Space Flight Center minerals",
fairbanksite,
Maryland phosphate minerals" azovskite