African Petrified Wood Agate 8mm Star Cut Coin - 15-16 Inch Size_15-22x23-33mm Rutilated Quartz is a silicon

Rutilated Quartz is a silicon dioxide mineral with unique needle to like inclusions of Rutile

remote parts of the globe

Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades

Cat’s Eye is a quartz stone that appears in a range of colors including white

African Petrified Wood Agate 8mm Star Cut Coin - 15-16 Inch Size_15-22x23-33mm Rutilated Quartz is a siliconPetrified 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.