Opal。蛋白石

Opal is unlike most other gemstones. It is a naturally hardened silica gel, containing 5-10% water. Opal varies from very colorful to almost white, black precious Opal being the most expensive. Australia has been the main producer of Opal for more than a century. It is the birthstone of October and a symbol of hope and purity. They can be cleaned with a soft damp cloth.

與大部份的寶石不同，蛋白石是一種天然硬化的矽膠凝體，內含百分之五到十的水份。蛋白石從其多樣性的色澤到幾乎淨白的都有，而黑色的蛋白寶石則是最昂貴的。近百年來，澳洲一直是蛋白石的主要來源地。蛋白石是十月份出生的人的生日石，同時它也象徵著希望與純潔。蛋白石可以用微濕的軟布來清潔保養。