African Petrified Wood Agate 4mm Round - 15-16 Inch Abalone Shell famous for producing nuggets in

famous for producing nuggets in a wide color range from pale blue to dark green

Lepidolite has a glassy or lustrous sheen

Moonstone is a Feldspar mineral that was used in Roman jewelry nearly 2

black or brown veins running through it in web-like patterns

Rhyolite or Tuff

African Petrified Wood Agate 4mm Round - 15-16 Inch Abalone Shell famous for producing nuggets inPetrified 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.