Vol. s3-46, Issue 271, 1893July 01, 1893 EDT
Piedmontite and Scheelite From the Ancient Rhyolite of South Mountain, Pennsylvania
Piedmontite and Scheelite From the Ancient Rhyolite of South Mountain, Pennsylvania
George Huntington Williams,
Williams, G. H. (1893). Piedmontite and scheelite from the ancient rhyolite of South Mountain, Pennsylvania. American Journal of Science, s3-46(271), 50–57. https://doi.org/10.2475/ajs.s3-46.271.50