Ametrine 13x17-18x25mm Nugget - 15-16 Inch FacetedAAA-Grade Selenite is a crystal formed

Selenite is a crystal formed from the mineral gypsum

Lapis is highly regarded for its beautiful blue color flecked with gold inclusions of pyrite

currently believed to be due to the presence of a copper-based mineral such as Malachite or Azurite

Blue Chalcedony is a naturally occurring soft blue translucent stone

Tourmaline has often been confused with other stones

Ametrine 13x17-18x25mm Nugget - 15-16 Inch FacetedAAA-Grade Selenite is a crystal formedAmetrine 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.