商品簡介
For mineral collectors, Lauf, a technology consultant who was a researcher on nuclear fuel, coal by-products, materials synthesis, microwave processing, sensors, optical materials, and biomineralization, explains how beryl is formed and the conditions that create fine aquamarines and emeralds. He details the chemistry, taxonomy, formation, and geochemistry of the beryl group of gemstones, and then information on each mineral--bazzite, beryl, indialite, pezzottaite, and stoppaniite--including its locality, etching and surface features, and many color photos. There is no index. Annotation c2012 Book News, Inc., Portland, OR (booknews.com)