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. rock (inorganic material)
8. sedimentary rock
9. [sedimentary rock by composition]
10. sandstone
11. [sandstone by composition or appearance]
12. [sandstone by composition: aggregate type]
13. argillaceous sandstone
14. bluestone

Anotations

Scope note:

A bluestone that is similar to Hudson bluestone and other bluestones from New York; it is characterized by a fine, compact texture and a dark blue-gray color. It is considered one of the most valuable stones found in Wyoming for building and flagging purposes.