Paraiba Tourmaline
These cupriferous tourmalines from the Mina da Batalha in the Federal Brazilian State of Paraiba are small, rare
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These cupriferous tourmalines from the Mina da Batalha in the Federal Brazilian State of Paraiba are small, rare
Continue Reading “Paraiba Tourmaline”
Can precious stones really hold a candle to coins and precious metal bars as investment alternatives? Diamonds are
Continue Reading “Gemstones Investment: Investing in diamonds, rubies, sapphires and emeralds”