Set of 10 Rocks and 10 Minerals

Set of 10 Rocks and 10 Minerals , total of 20 pcs in a case

Includes:

1. Basalt (I)
2. Granite (I)
3. Pumice (I)
4. Gneiss (M)
5. Marble (M)
6. Quartzite (M)
7. Phyllite (M)
8. Bituminous Coal (S)
9. Limestone (S)
10. Sandstone (S)
11. Agate
12. Calcite
13. Dolomite
14. Feldspar
15. Graphite
16. Gypsum
17. Magnetite
18. Pyrophillite
19. Quartz
20. Tourmaline

(I) = Igneous

(S) = Sedimentary

(M) = Metamorphic