Posted on December 26, 2020December 26, 2020 by aurmin — Leave a commentAuricupride Mineral auricupride (Cu3Au) Natural copper and gold alloy Bonneval-sur-Arc, Savoie, France EDS spectrum of auricupride Share this:TwitterFacebookLike this:Like Loading... Post navigationPrevious post: Instagram Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.