Category Silicate mineral Crystal system Triclinic | Strunz classification 9.DG.75 Space group P1 | |
Formula(repeating unit) K2Na(Ca,Mn)2Ti[O|Si7O18(OH)] Crystal class Pinacoidal (1)(same H-M symbol) | ||
Tinaksite (K2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]) is a mineral found in northern Russia. Tinaksite can be grayish-white, yellowish, orange, or brown, and it is often found in charoite. Its name is derived from its composition: titanium (Ti), sodium (Na) potassium (K) and silicon (Si). International Mineralogical Association first recognized tinaksite as a mineral in 1965.
References
Tinaksite Wikipedia(Text) CC BY-SA