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

In the accretionary Hellenides Orogen, gems occur in various rock types of mainly four tectonometamo

Purple jadeite, renowned for its distinctive purple hues and rich cultural connotations, is highly a

Jade or "Fei Cui" are trade names for a stone that typi- cally contains only one or more main minera