alamosite

noun

al·​a·​mos·​ite

¦a-lə-¦mō-ˌsīt

plural -s

: a monoclinic lead silicate PbSiO₃ occurring in white or colorless radiating fibers (hardness 4.5, specific gravity 6.5)

Word History

Etymology

Álamos, Sonora, Mexico, its locality + English -ite

First Known Use

1886, in the meaning defined above

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