[ Top ] [ Japanese ]

Class > Subclass > Family > Supergroup > Group > Subgroup/Series > Species > Polytype

Mineral Groups

A mineral group is composed of minerals satisfying the following two conditions:

  1. The same (Isotypic) or essentially the same (Homeotypic) structure
  2. The similar chemical composition

There are two types of mineral groups: Polymorph groups and Homeotypic groups. Polymorph groups have the same chemical compositions with different structures, and Homeotypic groups have the similar chemical compositions with the essentially the same structures.

Polymorph Groups

Homeotypic Groups