Multi Tourmaline 6mm Double Heart Faceted - 15-16 Inch Ruby Zoisite Blue Lace Agate is a

Blue Lace Agate is a naturally occurring soft blue agate

Yellow Opal is transparent to opaque

Green is the most common color for Aventurine

Unsealed granite may discolor when exposed to oil

Multi Tourmaline 6mm Double Heart Faceted - 15-16 Inch Ruby Zoisite Blue Lace Agate is aTourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to dark. It can even exhibit various colors within the same specimen. Its name derives from the Sinhalese word turamali, which translates to stone of many colors. Due to this variety of colors, Tourmaline has often been confused with other stones. Many stones in the Russian crown jewels from the 17th century