cyanite

noun

cy·​a·​nite

ˈsīəˌnīt

variants or less commonly kyanite

ˈkī- 

plural -s

: a mineral Al₂SiO₅ consisting of an aluminum silicate occurring commonly in blue thin-bladed triclinic crystals and crystalline aggregates

called also disthene

cyanitic

¦sīə¦nitik

adjective

Word History

Etymology

German zyanit, from zyan- cyan- + -it -ite

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