Australian Green Opal 10mm Round Faceted - 15-16 Inch - CLEARANCE chips but has been used historically

but has been used historically to describe the transparent variety

from light blue to lapis blue to cobalt

Porcelain Agate is a natural agate that is dyed and heated to give it the unique blue color and pattern that resembles porcelain

Labradorite is said to be a Stone Of Transformation

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

Australian Green Opal 10mm Round Faceted - 15-16 Inch - CLEARANCE chips but has been used historicallyAustralian Green Opal is a variety of Common Opal which is a mixture of Opal and nontronite. Common Opal is generally opaque, without the play of color present in more precious varieties, however it does exhibit a lustrous sheen referred to as opalescence. Green Opals are believed to provide energy and speed recovery from illness, exhaustion and mental angst.