Mixed Dark Lepidocrocite 8mm Large Hole Round - 8 Inch 6-8X10-12mm air bubbles or black carbon

air bubbles or black carbon deposits

depositing copper and other elements that gradually develop into turquoise

botryoidal

Agate is one of many varieties of banded Chalcedony

Read more about "DZI" beads in our blog "Heaven's Beads - DZI Beads Explained"

Mixed Dark Lepidocrocite 8mm Large Hole Round - 8 Inch 6-8X10-12mm air bubbles or black carbonAn iron oxide hydroxide mineral, Lepidocrocite forms when iron containing substances rust underwater. It is commonly found in the weathering of primary iron minerals and in iron ore deposits, and can be red to reddish brown. When skillfully cut and polished, those substances add a delicate accent to the otherwise clear gemstone.