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March-April 2018

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Who's Who in Mineral Names: Anthony “Tony” Steede (b. 1940)

Named in honor of Anthony “Tony” Hosford Steede of Toronto, Ontario, steedeite, NaMn2[Si3BO9(OH)2], is a single-chain borosilicate mineral. It occurs in small vugs as triclinic, radiating, colorless to pale pink microcrystals, with an average length of 0.5 mm, and exhibits pale green to pale yellow fluorescence under medium-wave ultraviolet radiation. Transparent to translucent, with a vitreous luster, it has an uneven fracture but no partings or cleavage.


Quintin Wight is the author of The Complete Book of Micromounting (Mineralogical Record, Inc., 1993).

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