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

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by function
6. colorant
7. pigments
8. pigment by color
9. green pigment
10. inorganic green pigment

Anotations

Scope note:

A dull green mica mineral composed of hydrated potassium iron silicate, that -- unlike other micas -- usually occurs as pelletlike grains in marine environments and is sometimes called "green sand." It is formed from the alteration of iron-bearing silicates by ocean water and organisms, is found along the Atlantic coast of the North and South America and on the ocean floors, and is sometimes used as a green earth pigment for paints.