12hljdt ((VINOGRADOVITE)), $5 MINIMUM BID, Kirovsk, Chibiny, Kola, Russia, 1.5 x .3 x .2 cm, Thumbnail, | |
A rare silicate with Ti. Mindat shows the crystals as white to colorless. Actually this black crystal has a 90 degree white crystal on the back side barely seen mid right side of this photo. That is probably the Vinogradovite. |