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Search Constraints

Start Over You searched for: Object class Mineral and rock samples Remove constraint Object class: Mineral and rock samples Collection place Contra Costa County, California Remove constraint Collection place: Contra Costa County, California

Search Results

1. Agate fragment

2. Agate fragment

3. Asphalt

4. Asphaltum

5. Asphaltum

6. Clay sample

7. Clay, sand, shell, and peat

8. Coal

9. Concretion

10. Crystal