Gem Tribes
7.3 هزار بار بازدید -
5 سال پیش
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Why are there so many
Why are there so many names for gemstones? Learn about some of the mental boxes that gemologists use that schmucks don't really know about. Understand gem insider knowledge and a bit of the science of how gemstones get their colour and earned their names in history.
5 سال پیش
در تاریخ 1398/11/29 منتشر شده
است.
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