
1) Borate mineral 2) Hexagonal mineral
Found on
https://www.crosswordclues.com/clue/fluoborite

Fluoborite has a chemical formula of Mg3(BO3)(F,OH)3. Its name comes from its main chemical components, FLUOrine and BORon. It was first described in 1926. Fluoborite`s crystal system is hexagonal, meaning it has one six-fold axis of rotation. It also has a mirror plane perpendicular to the c-axis. Fluoborite is uniaxial, just like all other hexa....
Found on
http://en.wikipedia.org/wiki/Fluoborite
No exact match found.