Home > Laskowski Ⅸ – October 7 > MS1982 Monteregianite-(Y)


Monteregianite-(Y) is a hydrous sodium potassium yttrium silicate. Chao (1978) named the mineral after the Montergeian Hills, a chain of isolated mountains in southern Québec; Mont St.-Hilaire is one example. Ghose et al. (1987) solved the crystal structure, indicating the mineral is susceptible to water loss at temperatures above 80°C.

Monteregianite-(Y) forms prismatic crystals to 3 mm on pectolite. This sample comes from the type locality. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.

Price: $50

Item code: MS1982

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