AUSTRALIAN OPAL PENDANT AND CHAIN STERLING SILVER 18.05CT
This opal shows off a bright blue and green colour with Amethyst at the top. Its from Coober Pedy South Australia.It stands out with at 18.05ct
Opal is formed from a solution of silicon dioxide and water. As water runs down through the earth, it picks up silica from sandstone, and carries this silica-rich solution into cracks and voids , caused by natural faults or decomposing fossils. As the water evaporates, it leaves behind a silica deposit.