👉 Henwoodite is a mineral that belongs to the group of halite minerals. It is named after Scottish geologist Robert Henry Henwood, who first described it in 1906. The chemical formula for henwoodite is NaAlF6, where Na is sodium, Al is aluminum, and F is fluorine. This means that henwoodite contains one sodium atom (Na), two aluminum atoms (Al), and six fluorine atoms (F). Henwoodite is
