Pipe Boulder Opal Pendant #18

A Bit About The Piece: A hand-cut Australian boulder opal pendant with a sterling silver ring. Details, details... The Stone: Pipe Boulder Opal, solid Stone Origin: Queensland, Australia Stone Measurements: 22.53mm x 13.48mm x 4.86mm Stone Shape: Freeform Cabochon Cut Brightness of Color: 1.5 of 5 Approximate Surface Opal Content: 18% Predominant Colors: Blue and Purple Pendant Weight: 2.65 grams The Metal: .925 Sterling Silver, solid *All photos are of the front of the stone.     About Opal:   While many believe opal to come only in a traditional white hue, this common misconception cannot be more inaccurate.  With over 200 varieties of natural opal discovered so far, the historically referred "Queen of Gems" can come in a wide variety of colors- before the stone's famous "play of color" rainbow effect is even taken into consideration.  Over 90% of the world's opal is produced in Australia with other well-known deposits located in Mexico, Ethiopia, Brazil, and the United States. Chem