Ametrine 6mm Round A Grade - 15-16 Inch Coffee Mug Commuter Turquoise ” Tourmaline is unusual in

” Tourmaline is unusual in that it is both pyroelectric and piezoelectric

usually in white on hues of brown

It is a variety of the silicate Spodumene

leafy patterns

” which translates to “stone of many colors

Ametrine 6mm Round A Grade - 15-16 Inch Coffee Mug Commuter Turquoise ” Tourmaline is unusual inAmetrine 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.