Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. mineral

Anotations

Scope note:

A green, calcium magnesium silicate mineral sometimes used as a gemstone; a pyroxene-type mineral with short, monoclinic crystals. The transparent to translucent crystals have either a square or octagonal cross section. The color of diopside crystals ranges from light to dark green. Powdered diopside is used as a matting agent in ceramic glazes.