A tourmaline is a magnificent stone that comes in a large spectrum of colors. Relating back to all gemstones, the most attractive colors and qualities are more expensive than the lower qualities. Tourmaline is a birthstone for October, along with opal. Tourmaline is also the gem of the eighth anniversary.
Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “outback.” The opal is a non-crystalline mineral. It has been mined since the beginning of the 20th century. Opals are fragile, however, and care must be taken not to strike them against hard surfaces.