Opal stones

Opal stones are hard to find you can find them on land and water.There are fire opal,light opal,black opal,white opal,pink opal,green opal and blue opal there are too much uther opal stones to name.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.So thank you for reading my story about opal stones.