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. metamorphic rock
9. marble (rock)
10. [marble by composition or origin]

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by composition
6. inorganic material
7. rock
8. sedimentary rock
9. sedimentary rock by composition
10. carbonate rock
11. limestone
12. limestone by composition
13. limestone by composition: aggregate type
14. fossiliferous limestone
15. shelly limestone

Anotations

Scope note:

Stone quarried in the vicinity of the Isle of Purbeck peninsula, Dorset, England; used primarily as a building stone. It is actually a hard semi-metamorphosed limestone formed from the shells of snails. Given that the stone is hard enough to take a fine polish it is called "Purbeck marble," even though it is not fully metamophosed marble.