Zone of crystal faces

Zone of crystal faces

In crystallography a characteristic feature of a serie faces of a crystal where those intersection lines with each other are all parallel.

See Alexandrite Tsarstone collectors guide, Definition of Zone of crystal faces, http://m.alexandrite.net/viewpage.html?id=GG-085-00004 (In crystallography a characteristic feature of a serie faces of a crystal where those intersection lines with each other are all parallel.) (as of May. 21, 2026, 17:50 GMT).