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Tourmaline

 
Tourmaline | Marco Schreier wholesale suppliers - gems, healing stones & jewelry
Tourmaline was already known in ancient times but was always equated or confused with other gemstones due to a lack of mineralogical knowledge. In the 16th century, for example, the Portuguese believed that they had found emeralds in the Brazilian gemstone fields of Minas Gerais. Tourmalines were the most popular ...