October's birthstone is Opal.
The opal has long been a sought-after gemstone, with the earliest known opal artifacts dating back to about 4000 B.C. Some of the first beliefs surrounding this unique stone include its capability to amplify feelings, promote spontaneity, and enhance psychic abilities. Opals are also known as symbols of hope and purity.
As one of the more delicate gemstones, opals need careful protection from scratches, household chemicals, and temperature changes. Be sure to remove your opal jewelry before activities such gardening or housecleaning. Clean your opals with a soft cloth to help keep their brilliance.