THE MINERAL OPAL
Opal is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, Rhyolite, marl and basalt. The definition of "Common opal" is a stone that does not exhibit a "play of color". Common Opals are magnificent for metaphysical purposes, vibrating at a lower frequency than the transparent or fiery Opals, and provide gentle, nurturing support for the emotional body. They help alleviate worry, chronic stress and depression, and are perfect antidotes for sleeplessness and nightmares, and healing subconsciously held pain.