Opal was formed many millions of years ago, when a combination of silica and water flowed into cracks and spaces in the ground. This then gradually hardened and solidified to become opal. Opals contain water, which makes them very sensitive to heat. They are soft and can be cracked or chipped easily. Opals should be stored in moist absorbent cotton.
White Opal is a stone of angelic connections. It is often used for clearing emotions to create more positive vibrations. It is useful in balancing all chakras.
The opal is said to be many things including the most powerful of healing stones, the stone of hope, the stone of great achievement and even the "stone of the Gods". Ancient Romans associated opal with hope and good luck.