roscherite

noun

roscher·​ite

ˈräshəˌrīt,

ˈrōsh-

plural -s

: a mineral (Ca,Mn,Fe)₂Al(PO₄)₂(OH).2H₂O consisting of a hydrous basic phosphate of aluminum, manganese, calcium, and iron and occurring in dark brown monoclinic crystals

Word History

Etymology

German roscherit, from Walter Roscher, 20th century German mineral collector) + German -it -ite

First Known Use

1915, in the meaning defined above

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