Pipe Crystal Boulder Opals
Pipe Crystal Boulder Opals, or commonly referred to as Pipe Opals are a type of opal found in boulder opal mines in Winton. These opals are found in pockets of sandstone within the boulder opal mine; referred to as ‘pipes’ in the mine; giving them their name. The lighter colored sandstone hostrock is desirable among jewelers making youth / fashion jewelerly. The bright colored purples, pinks, blues and greens that have been discovered in pipe opal are in very high demand around the world.