This drilled boulder opal is approx. 3.7 cm in size and weighs approx. 13.5 g; drill hole diameter approx. 2.9 mm.
Origin of the rough: Australia. Characteristic for the Australian boulder opals is the brown matrix
brown matrix with thin, colored (mostly blue) opal veins.
Boulder opal is highly valued in gemstone healing and is used when humor and joie de vivre need to be supported. The colorful iridescent opal helps to infect others with one's own joy (of life) and not to lose confidence and courage even in difficult situations.