title: Tinaksite
text: # Tinaksite
  
  Tinaksite (chemical formula $K_2Na(Ca,Mn^{2+})_2TiO[Si_7O_{18}(OH)])$ 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). The International Mineralogical Association first recognized tinaksite as a mineral in 1965.
  
  