English edit

Etymology edit

Named in honour of Lewis Stephen Ramsdell (1895-1975), Professor of Mineralogy at the University of Michigan, who first discovered the mineral

Ramsdell +‎ -ite

Noun edit

 
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ramsdellite (countable and uncountable, plural ramsdellites)

  1. (mineralogy) A black or gray orthorhombic mineral form of manganese dioxide

References edit