This mixed Rock boxed set comes with 20 specimens and is ideal for educational school, college and university use or individuals who simply have an interest in geology. The collection exhibits a broad variety of rock types; igneous, metamorphic and sedimentary, from coarse grained plutonic granites to desert sandstones, offering an opportunity for the user to sharpen their rock identification skills and become more familiar with the characteristics of igneous, metamorphic and sedimentary rocks.

Each specimen is housed within its own plastic compartment which correlates to a coloured data sheet on the inside of the lid of the cardboard box.

The set includes:

1. Granite
2. Gabbro
3. Obsidian
4. Pumice
5. Basalt
6. Metaquartzite
7. White Marble
8. Slate
9. Mica Schist
10. Gneiss
11. Conglomerate
12. Breccia
13. Permian Sandstone
14. Carboniferous Sandstone
15. Shale
16. Oolitic Limestone
17. Chalk
18. Crinoidal Limestone
19. Bituminous Coal
20. Flint