Minerals

Which minerals in the table will scratch quartz? ________________, _____________________, ______________________

List the following minerals in order of decreasing hardness: apatite, calcite, corundum, feldspar, and talc.

_____________________ (hardest of group) _____________________

_____________________

_____________________

_____________________ (softest of group)

What would happen if you rubbed a piece of fluorite against a piece of feldspar?

Tags

NGSS.MS-PS1-2

What would you expect to happen if you rubbed a mineral of hardness 7.5 against a piece of quartz?

An unknown mineral scratches apatite and is scratched by corundum. What mineral(s) on Moh’s hardness scale could the unknown mineral be. _________________________________________

If an unknown mineral has a hardness between 5 and 9, what could you do to the mineral to find out more about its hardness? _________________________________________

A mineral with a hardness of 6 will scratch a mineral with a hardness of more than 6.

• True

• False

Minerals come from organic materials.

• True

• False

A mineral must be inorganic, which means that it contains:

• compounds

• materials made by humans

• parts of living things

• no materials that were once part of living things.

What is the hardest known mineral?

• talc

• quartz

• diamond

• gold