Minerals and Metals in Ancient India v2.c36.1
Minerals and Metals in Ancient India v2.c36.1
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v2.c36.1
*Ill. 2.1* Amethyst 52 x 60 mm. Manganese containing quartz or sphatika.
Minerals and Metals in Ancient India v2.c36.1
*Ill. 2.1* Amethyst 52 x 60 mm. Manganese containing quartz or sphatika.