Jadeite 12mm Round A Grade - 15-16 Inch Iolite This variety of opal is

This variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns

also known as Blue Ice Glacierite or Blue Ice Nakaurite

Its color is due to the presence of Manganese and Iron in the stone

is a lab-made form of zirconium dioxide

Jadeite 12mm Round A Grade - 15-16 Inch Iolite This variety of opal isJade refers to an ornamental mineral, mostly known for its green varieties. Jade has been used for tens of thousands of years, initially as tools because of its hardness, but is prized, especially in Asian cultures, as a gemstone that is cut into many shapes and often given a high polish.