Diamonds from Than Lwin River near Mong Hsu, Myanmar

Most of the spinels are found in shades of red to purple. Colourless, green and cobalt bearing varie

Bohemian garnets, i.e., chromium-bearing pyropes, are found in several jewellery pieces from the Mig

This paper aims to present the history of the modification of Baltic amber (succinite), and particul