Early 19th century; earliest use found in Journal of Natural Philosophy, Chemistry and the Arts. From French dichroïte from ancient Greek δίχρους + French ite.
Definition of dichroite in US English:
dichroite
nounˈdʌɪkrəʊʌɪt
Mineralogy rare
Iolite.
Origin
Early 19th century; earliest use found in Journal of Natural Philosophy, Chemistry and the Arts. From French dichroïte from ancient Greek δίχρους + French ite.