6. what is the hardness of a copper coin
- 2
- 2.5
- 3
- 1.5
- 1
7. who invented the hardness scale
- jellis
- bevans
- frederick mohs
- bob hard-man
- derick hard
8. minerals are
- harrys dinner
- inorganic substances
- mr greens fantasy!
- boring
- cool
9. which mineral can you taste
- halite
- calcite
- quartz
- jellis
- galena
10. name an equidimensional mineral
- calcite
- halite
- quartz
- feldspar
- mica
