Gem andradite garnet deposits demantoild variety

The objective of this short review and update is to present the state-of-the-art on the geology and gemology of demantoid garnet deposits. The different studies conducted over the last thirty years provide the opportunity to unravel the features of the gem andradite, a green variety of garnet through field and laboratory research, including geology, petrography, gemology, fluid inclusions and stable isotopes. The different features are compared in order to approach the question of the geological and geographical origins of the rare demantoid garnet

Gem andradite garnet deposits demantoild variety

The objective of this short review and update is to present the state-of-the-art on the geology and gemology of demantoid garnet deposits. The different studies conducted over the last thirty years provide the opportunity to unravel the features of the gem andradite, a green variety of garnet through field and laboratory research, including geology, petrography, gemology, fluid inclusions and stable isotopes. The different features are compared in order to approach the question of the geological and geographical origins of the rare demantoid garnet