1) Calcium mineral 2) Potassium mineral 3) Triclinic mineral
Found on
https://www.crosswordclues.com/clue/frankamenite
Frankamenite is the fluorine-dominate variation of the rare mineral canasite with a general formula of K3Na3Ca5(Si12O30)[F,(OH)]4·(H2O). Frankamenite belongs to the triclinic crystal system, with the bases of its structure containing Ca-Na mixed octahedra joined by octagonal tubes SiO4 of the composition (Si12O30). Frankamenite has six Ca-Na mixe...
Found on
http://en.wikipedia.org/wiki/Frankamenite
No exact match found.
