| front |
back |
revisions |
lasted changed by |
history |
Look at Mohs' hardness scale. Which of the following minerals is the hardest?
1. diamond
2. apatite
3. topaz
4. talc |
1. diamond |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
 |
| Look at Mohs' hardness scale. You have a mineral which can scratch fluorite but not quartz. What is the approximate hardness? |
5 or 6 |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| Name 6 ways people use minerals. |
1. graphite- pencils
2. silver and copper- jewelry
3. hematite- used to make iron in steel
4. cuprite (refined from copper and oxygen)- used in pennies, pots and pans, water pipes
5. gypsum- used to make plaster and wallboard
6. diamonds- used in jewelry, used to make drill bits |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| _____________ is the hardest natural substance on Earth. |
diamond |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| _____________ is the tendency of some minerals to break unevenly along curved or irregular surfaces. |
fracture |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| ______________ is the ability of some minerals to break along flat surfaces. |
cleavage |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| _______________ is tha ability of a mineral to resist being scratched. |
hardness |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| Minerals that look dull or dark have a ______________________. |
nonmetallic luster |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| The sparkling appearancer of a diamond is called a _______________. |
brilliant luster |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| Name a mineral that has metallic luster. |
aluminum |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| __________ is the color left behind when youy rub a mineral on a white surface |
streak |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| The way the surface of a mineral reflects light. |
luster |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
| List 3 features a material must have to be called a mineral. |
1. solid material
2. Form only in nature
3. Particles are arranged in a repeating pattern (like a crystal) |
0 |
angela Wed, 05 May 2010 23:15:30 GMT |
|
