Ametrine 13x17-18x25mm Nugget - 15-16 Inch Germany Shungite has been used as

Shungite has been used as a folk medical treatment since the early 18th century

Naturally occurring in hues of blue to green to green with spots and streaks of red

Green Garnet can be among the most valuable of garnets

Petrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years

Ametrine 13x17-18x25mm Nugget - 15-16 Inch Germany Shungite has been used asAmetrine 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.