Rough Opal, Girasol - 1 LB, Size Small

Each piece is approximately 1/2" - 2" in size.

Girasol opal is not a true opal but a type of quartz that exhibits a dreamy opalescent glow that seems to move across the surface of the stone as it catches the light. This phenomenon is known as the "Girasol effect" and is caused by microscopic inclusions of water within the quartz.