Ametrine 13x17-18x25mm Nugget - 15-16 Inch Germany Viking explorers used thin pieces

Viking explorers used thin pieces of Iolite as the world’s first polarizing lens to help them determine the exact location of the sun for navigation

Usually found near copper deposits

The stone was discovered in 2009 by a man in Mexico as a man chasing his goat up a mountain caught sight of an unusual rock

Green Garnet can be among the most valuable of garnets

Ametrine 13x17-18x25mm Nugget - 15-16 Inch Germany Viking explorers used thin piecesAmetrine is quartz that occurs in bands of purple and yellow. As the name suggests, it is a combination of Amethyst and Citrine. The different colored zones in the stone result from different oxidation states of iron, due to exposure to different temperatures during its formation. It is believed that Ametrine was first introduced to Europe by a conquistadors gift from Bolivia to the Spanish Queen.