Semi Precious Stone Beryl
Beryl is often unknown to the general people, even the gemstone-buying public. However, it is one of the most precious gem stones minerals. Beryl is colorless in its pure form; it is the many different impurities, which give beryl its varied coloration. Without these splendid color varieties, beryl may be a rather ordinary gemstone with only average fire and brilliance. Emerald is the green variety and also Aquamarine is the blue variety of beryl. Other colors of beryl are also normally used as gemstones but are not as well known.
Historical Facts of Aquamarine
Refractive Index: 1.577(+-.016), 1.583 (+-.017)
Chemical Composition: Be3Al2(SiO3)6
Crystal Group: Hexagonal
Color Information: Green, Blue, Pink, Yellow, Red
Ocurrence: Austria, Columbia, Brazil, Russia, East Africa, Australia, Madagascar, South Africa, Zimbabwe, India, Pakistan, Zambia, Nigeria, U.S.A., Afghanistan