White Opal or Light Opal. "Light opal" and "white opal" are terms used for opal material that has a white, yellow or cream body color. ... These stones were cut from material mined at Coober 
Pedy, South Australia. They are calibrated 8 x 6 millimeter cabochons.Opal is the birthstone for the month of October. Onyx is known to  help release negative emotions such as sorrow and grief. It is used to end unhappy or bothersome relationships. Black Onyx is the anniversary gemstone for the 10th year of marriage.