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 color or pattern]
11. gray marble

Anotations

Scope note:

A hard and highly crystalline marble from Missouri that is used extensively for interior and exterior applications; it is grayish in color, has a close, even texture and takes a high polish. Crinoide remains create pencil-like markings which in turn create attractive patterns that are revealed when the marble is sawn crossways.