schwartzembergite

\\ˈshwȯrtsəmˌbərˌgīt\ noun (-s)

Etymology: Schwartzemberg, 19th century Chilean mineral assayer + English -ite

: a mineral Pb₅(IO₃)Cl₃O₃ that is an iodate, chloride, and oxide of lead

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schwartzembergite Min.

(ˈʃwɑːtsəmbɜːgaɪt)

[Named by Dana, 1868, after Schwartzemberg, its discoverer: see -ite.]

Oxy-chloro-iodide of lead, found in small yellow crystals.

Dana Min. (ed. 5) 120. Encycl. Brit. XVI. 385.