Tags: Chemical Substance, Mineral.
The name apophyllite refers to a specific group of phyllosilicates a class of minerals. Originally the group name referred to a specific mineral but was redefined in 1978 to stand for a class of minerals of similar chemical makeup that comprise a solid solution series and includes the members apophyllite-(KF) apophyllite-(KOH) and apophyllite-(NaF).
