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
8. garnet (mineral)

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by form
6. materials by chemical form
7. compounds
8. silicates

Narrower term/s

• demantoid

Anotations

Scope note:

A type of garnet composed of a calcium iron silicate. Colors include yellow, red, green, brown, and black. Gemstone quality andradite is mined in the Ural Mountains, Italy, Switzerland, Norway, France, and in the United States (Arkansas and New Jersey). It is valued because of its high dispersion (separation of light into colors), which is even greater than that of diamond, and refractive index.