Gem zircon and sapphire age dating and application of origin determination: A study from New England sapphire fields, New South Wales, Australia

One of the challenges facing gemologists today is the detec- tion of low temperature (below 1200°C)

Corundum, encompassing the highly prized ruby and sapphire varieties, stands as a cornerstone of the

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