Oxybismutocmicrolite / Oxybismutomicrolit
(Bi3+1.33□0.67)Ta2O6O
Black crystal of oxybismutomicrolite. Malkhan, Krasny Chikoy, Transbaikalia, Siberia, Russia. Picture size 4 mm. Collection and foto Thomas Witzke.
Schwarzer Oxybismutomicrolit-Kristall. Malkhan, Krasny Chikoy, Transbaikal, Sibirien, Russland. Bildbreite 4 mm. Sammlung und Foto Thomas Witzke.
© Thomas Witzke