senarmontite

senarmontite

[sen-er-mon-tahyt]
noun
a mineral, antimony trioxide, Sb 2 O 3 , occurring in pearl-colored isometric octahedrons: a dimorph of valentinite.

Origin:
1850–55; named after Henri de Sénarmont (died 1862), French mineralogist; see -ite1

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World English Dictionary
senarmontite (ˌsɛnɑːˈmɒntaɪt)
 
n
a white or grey mineral consisting of antimony trioxide in cubic crystalline form. Formula: Sb2O3
 
[C19: named after Henri de Sénarmont (died 1862), French mineralogist]

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