Definition of ramsdellite in English:

ramsdellite

noun ˈramzdəlʌɪt

Mineralogy

A manganese-containing mineral that occurs as grey to black, platy, or finely crystalline masses, and is dimorphous with pyrolusite.

1940s. From the name of Lewis S. Ramsdell, U.S. mineralogist, who described the mineral in 1932 (Amer. Mineral. 17 143–9) + -ite.

nounˈramzdəlʌɪt

Mineralogy

A manganese-containing mineral that occurs as grey to black, platy, or finely crystalline masses, and is dimorphous with pyrolusite.

1940s. From the name of Lewis S. Ramsdell, U.S. mineralogist, who described the mineral in 1932 ( Amer. Mineral 17 143–9) + -ite.

词汇	ramsdellite
释义	Definition of ramsdellite in English: ramsdellite noun ˈramzdəlʌɪt Mineralogy A manganese-containing mineral that occurs as grey to black, platy, or finely crystalline masses, and is dimorphous with pyrolusite. Origin 1940s. From the name of Lewis S. Ramsdell, U.S. mineralogist, who described the mineral in 1932 (Amer. Mineral. 17 143–9) + -ite. Definition of ramsdellite in US English: ramsdellite nounˈramzdəlʌɪt Mineralogy A manganese-containing mineral that occurs as grey to black, platy, or finely crystalline masses, and is dimorphous with pyrolusite. Origin 1940s. From the name of Lewis S. Ramsdell, U.S. mineralogist, who described the mineral in 1932 ( Amer. Mineral 17 143–9) + -ite.
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