Purplish Pink Spinel from Tajikistan: Before and After Cutting
Read MoreZambia is considered the world’s second most important source of emeralds by value (after Colombia).
Read More
This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read More
Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic and microscopic characteristics of stones from the recent production are presented and compared with data on older samples as well as those reported in the literature.
Read MoreDuring the 1970s and 1980s, treasure hunters discovered the centuries-old remains of the sunken Spanish galleons Nuestra Señora de Atocha and Santa Margarita.
Read More
The filling of surface-reaching breaks in emeralds is a relatively common practice, for which various kinds of oils and a natural resin have historically been used.
Read MoreIn 1988, a significant find of emeralds was made at Capoeirana, near Nova Era, in the state of Minas Gerais, Brazil.
Read MoreMore than 2,000 years ago, emerald deposits in upper Egypt were supplying gems throughout the Graeco-Roman Empire.
Read MoreTairus, in Novosibirsk, has produced yet another new type of Russian hydrothermal synthetic emerald.
Read MoreOver the last decade, Pakistan has developed into an important source for many gem materials.
Read More
