Opal is a stone of sympathy and compassion, pure thoughts & confidence. It is the most unpredictable stone, a symbol of ever-changing fortune. According to legend an opal talisman boosts foresight--dunno about that but it is my favorite stone.
world's largest emerald (size of a watermelon) Is this thing real?Probably not, It was dyed, so we'll never know what percentage is emerald, and what percentage is white beryl. It failed to sell at auction.