1.  Cleavage characteristics:

i.

ii.

iii.

iiii.

iiiii.

 

2.  Parting vs. cleavage:

 

3.  Define incipient cleavage. Name two minerals that exhibit such a trait.

 

4.  Draw and define van der Waals bond.

 

5.   What is the process involved in cutting a diamond?

 

What is the MOHS scale?  Is this relative or absolute? What is the difference between the two?

 

How do fractures happen? Cleavages? What happens to the crystal lattice?

 

	HARDNESS	CLEAVAGE?	CHEM COMP?	CRYS. SYSTEM
BERYL
CORUNDUM
DIAMOND
QUARTZ
CHRYSOBERYL
SPINEL
GARNET
TOPAZ
CALCITE

 

 

 

1.                                 2.                                 3.                                 4.                                 5.