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Introduction to Tourmalines by SSEF
First Section
Introduction to Tourmalines
What is Tourmaline?
Tourmaline: from Rough to Cut
Tourmaline: Geology and Formation
Tourmaline Sources
History of Tourmalines
The Science of Tourmalines
Colours and Varieties of Tourmaline
Famous/Record-breaking Tourmalines
Quiz on Tourmalines
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Tourmaline: Geology and Formation
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