Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results

Malacacheta, located in Minas Gerais, Brazil, is renowned for its alexandrite deposits and com-plex

Museums are unique repositories of international treasures. They are also places of active research,

Larimar, a massive blue variety of the mineral pectolite, belonging to the wollastonite group of min