GREEN OPAL is like fountain of Youth, because it deeply rejuvenates our subtle body. It would strengthen our immune system (heart chakra). It would therefore be ideal for entering the winter without fear of the cold. It is also a stone that frees fears, insecurity and false guilt.
On a mental level, green opal guides our consciousness towards a positive outlook on life. In your environment, opal brings a feeling of freshness and renewal. On the heart chakra, it is soothing.
Green opal naturally contains a lot of water and exposing it for too long in the sun or in an area devoid of excess moisture can cause it to split due to dehydration. It is therefore advisable to soak it in water (a few seconds) from time to time and this will even give it a more beautiful shine.