African Petrified Wood Agate 8mm Star Cut Coin - 15-16 Inch destash-lhb It displays a visual property

It displays a visual property called “pleochroism

Peridot (pair-uh-doe) is one of only two gems

Thulite is the naturally occurring pink variety of the mineral Zoisite

The name derives from “cuprum

The blue colors are photosensitive and may fade when exposed to excessive light or heat

African Petrified Wood Agate 8mm Star Cut Coin - 15-16 Inch destash-lhb It displays a visual propertyPetrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years. Petrification occurs when the wood is covered by sedimentary rock, as waters loosen and decompose the organic elements and replace them with silicate substances, while maintaining the wood's original structure. Preservation is enabled by a lack of oxygen.