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Edward Claasen     

The Carnegie Museum in Pittsburgh has a specimen of cacoxenite on martite from Michigan that had a handwritten note with it signed by E. Claasen. This is supposedly from the first occurrence of cacoxenite discovered in America. An American Journal of Science article tells more: "Mr. E. Claasen of Cleveland has identified cacoxenite on the martite of Lake Superior. It appears in brownish-yellow acicular crystals forming radiating tufts." (American Journal of Science, vol. XVII (1879), page 333.) Edward Claasen was a clerk living at 1141 Lorain Ave. in Cleveland (Cleveland City Directory, 1892). The 1917 Directory states that he was a "chemist" (18 Fernwood Ave.).
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WILSON, Wendell E. (2019)
Mineralogical Record
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