Home > Laskowski Ⅸ – October 7 > MS1974 Donnayite-(Y)


Donnayite-(Y) is a complex hydrous carbonate of sodium, strontium, calcium and ytrrium. The mineral name honors husband and wife crystallographers, Professor Joseph D. H. Donnay (1902-1994) at John Hopkins University, Baltimore, and Professor Gabrielle (Gai) Donnay-Hamburger (1920-1987) at McGill University, Montréal (Chao et al., 1978).

Donnayite-(Y) forms green-brown tablets to 5 mm on a matrix of crystallized albite. A dusting of later pyrite coats both donnayite-(Y) and albite. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.

Price: $75

Item code: MS1974

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