'Rocks And Minerals' Geography Worksheet (Page 2 of 4) in pdf

'Rocks And Minerals' Geography Worksheet Page 2

13. What is the hardness of a mineral that can scratch glass? _____________

14. What is the hardness of a mineral that cannot be scratched by a fingernail and

cannot scratch glass? ______________

15. The property that describes a mineral breaking along flat surfaces. ____________

16. The property that describes a mineral breaking unevenly _____________

17. How heavy a mineral is compared to water. _____________

18. Calcite often shows these two special properties:

19. Special property used to identify magnetite. __________________

20. Special property used to identify sulfur. ________________

21. How are rocks classified?

22. List the three classes of rocks:

23. Type of rock formed from the cooling and crystallization of molten lava and

magma. _______________________

24. Igneous rocks are classified based upon:

25. How do extrusive igneous rocks form?

26. What two characteristics do extrusive igneous rocks have?

27. How do intrusive igneous rocks form?

'Rocks And Minerals' Geography Worksheet Page 2