Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load.
These mineral photos are copyrighted by their owners and may not be used without permission.
Comments: B&W, oil immersion, XPL image of a twinned grain of kostovite surrounded by native tellurium (Te), chalcopyrite (Cp), Tennantite (Tn) and barite (Ba). (AmMin, v51:29).
Location: Chelopech copper deposit, Bulgaria.
Scale: Magnification 1,000 X.
© American Mineralogist
Comments: Dark gray metallic fragment of kostovite embedded in epoxy.
Location: Chelopech Mine, Chelopech Obshchina, Balkan Mts (Stara-Planina Mts), Sofiya (Sofia) Oblast, Bulgaria.
Scale: See Image.
© Rruff Database