mineral book:"Gems and Gemology" magazine, spring, 2011

Description

Here is a magazine magazines from the great publication by GIA(Gemological Institute of America), from spting 2011. These magazines are great for people interested in, or working professionally with gemstones. However, I think they are also great for mineral collectors, as they contain great in depth information on the chemical composition of gem minerals, and also feature great reports on gemstone localities.
This specific magazine from  2011features, among others, articles onDemantoid from Madagascar, and great Aquamarine from Vietnam.