Research Article Search Results

An overview of the plentiful and various gem materials being discovered and produced in Afghanistan.

An overview of Australia's recent significance in the production of blue sapphire.

A history of pearls in jewelry and fashions through the ages.

The American freshwater pearl industry and its new entry, the freshwater cultured pearl.

A review of the history of this area, its geology, and the mining methods that have predominated.

This article focuses on Colombian emeralds and gives a detailed explanation of the oiling process as observed by the author.

A report on the new synthetic ruby trade-named Ramaura.

The history of the Kashmir mines, the beautiful sapphires found there, and the outlook for the future.

Thailand has become the world's major source of gem ruby.