Minerals and Metals in Ancient India v2.c42.s2.t1.9
Minerals and Metals in Ancient India v2.c42.s2.t1.9
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v2.c42.s2.t1.9
Green beryl (*vaidūrya*) has been clearly distinguished from sea-blue aquamarine (*nīla vaidūrya*):
Minerals and Metals in Ancient India v2.c42.s2.t1.9
Green beryl (*vaidūrya*) has been clearly distinguished from sea-blue aquamarine (*nīla vaidūrya*):