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. metal
8. [metal by composition or origin]
9. nonferrous metal
10. [strontium, strontium isotopes, compounds, alloys]

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. elements

Anotations

Scope note:

Strontium (symbol: Sr) is a soft silver-white metallic element that turns yellow when exposed to air. Strontium is used commercially in luminous paint, fireworks and television tubes, and the compound strontium-oxide serves as a non-toxic replacement for lead in ceramic glazes. Paleontologists study strontium levels in human and animal bone for information about ancient diet.