cossyrite

noun
cos·​sy·​rite | \ ˈkäsəˌrīt\
plural -s

Definition of cossyrite

: a variety of aenigmatite occurring in minute crystals in lava

History and Etymology for cossyrite

German cossyrit, from Cossyra, island near Sicily (now Pantelleria) + German -it -ite

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