Yellow Jade 12mm Coin - 8-Inch 9x13mm Black Opal is a naturally

Black Opal is a naturally occurring variety of precious opal mined in Australia

thought to be derived from trace amounts of titanium

Composite beads may also be called "mosaic beads" becau

Each strand reflects the unique mineral composition of the region

colored by trace amounts of chromium and/or vanadium to range in hue from yellow to green to blue to green

Yellow Jade 12mm Coin - 8-Inch 9x13mm Black Opal is a naturallyYellow Jade is not actually Jade, but a form of natural Serpentine which is commonly referred to as Yellow Jade in the stone industry. This semi to translucent stone occurs in an array of hues, from deep oranges to creamy off to white tones. As a Serpentine, Yellow Jade is a magnesium iron phyllosilicate and may contain other elements including chromium, manganese, cobalt or nickel.