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sanidine

noun
san·​i·​dine | \ ˈsanəˌdēn, -də̇n\
plural -s

Definition of sanidine

: a variety of orthoclase in often transparent crystals in eruptive rock (as trachyte) that is thought to form at higher temperatures than adularia

— called also glassy feldspar

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Other Words from sanidine

sanidinic \ ¦⸗⸗¦dinik \ adjective

History and Etymology for sanidine

German sanidin, from Greek sanid-, sanis board + German -in -ine; from its tabular crystals

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