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Issues
Volume 4, Number 10
1 October 1919

ISSN 0003-004X
EISSN 1945-3027
A columbite crystal from Boothwyn, Pennsylvania
American Mineralogist October 01, 1919, Vol.4, 121-123. doi:
Hematite and rutile formed by the action of chlorine at high temperatures
American Mineralogist October 01, 1919, Vol.4, 126-127. doi:
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