This mineral is softer than my fingernail harder than my fingernail harder than glass 3 points QUESTION 2 Sample #1- What is the name of this mineral?...

1. Sample #1- This mineral is  
2. softer than my fingernail   harder than my fingernail   harder than glass  

3 points  

QUESTION 2

1. Sample #1- What is the name of this mineral?  ____________________.

3 points  

QUESTION 3

1. Sample #2- This mineral has a _______________ luster.  
2. metallicnonmetallic

3 points  

QUESTION 4

1. Sample #2- Carefully examine this mineral. It often displays either small or large cubes or octahedrons. What is the name of this mineral?  ____________________.

3 points  

QUESTION 5

1. Sample #3- What sort of streak does this mineral leave?  
2. purpledark greenyellow-brownbright red

3 points  

QUESTION 6

1. Sample #3 What is the name of this mineral?  ____________________.

3 points  

QUESTION 7

1. Sample #4 is ________________  
2. softer than my fingernail  softer than glass  harder than glass  

3 points  

QUESTION 8

1. Sample #4- What is the name of this mineral?  ____________________.

3 points  

QUESTION 9

1. Sample #5- Look closely at this mineral, turn it around and over several times. This mineral often looks splintery, you should lines running through it. The streak may surprise you also. What is this mineral?  
2. chalcopyritebiotitesphalerite  augite

3 points  

QUESTION 10

1. Sample #6- This mineral is softer than glass.  What is the name of this mineral?  ____________________.
2. biotitepyritechalcopyriteolivine

3 points  

QUESTION 11

1. Sample #7- This mineral should have scratched the glass plate, although it may have been hard to tell since it tends to crumble. The color of this mineral is a good diagnostic tool. What is the name of this mineral? ____________________
2. quartz
3. olivine
4. hornblende
5. fluorite
6. chlorite
7. talc

3 points  

QUESTION 12

1. Sample #8- The cleavage of this mineral is an excellent tool used to identify it. What sort of cleavage does this mineral display?  
2. cubic  (3 directions at 90 degrees)
3. basal (one direction- sheet like)  
4. octahedral  (4 directions)
5. rhombohedral  (3 directions not at 90 degrees)

3 points  

QUESTION 13

1. Sample #8- What is the name of this mineral?  ____________________.

3 points  

QUESTION 14

1. Sample #9- This mineral is  
2. softer than my fingernail  harder than my fingernail but softer than glass  harder than glass  

3 points  

QUESTION 15

1. Sample #9 is  
2. halitequartz gypsumfluorite

3 points  

QUESTION 16

1. Sample #10- Observe the pea sized shapes within this mineral. It is often mined for its aluminum content. Hardness can be hard to determine because of the nodules.  The overall hardness of this mineral is softer than glass.  What is the name of this mineral?  ____________________.

3 points  

QUESTION 17

1. Sample 11- This mineral is _____________ than your fingernail  
2. hardersofter

3 points  

QUESTION 18

1. Sample #11 is  
2. quartzfluoritegypsumolivine

3 points  

QUESTION 19

1. Sample #12 should have a greasy feel. What is the name of this mineral?  _____________.

3 points  

QUESTION 20

1. Which of the following is a special characteristic of Sample #13?  
2. it leaves a bright orange streak  it is magnetic  it has one perfect direction of cleavage (basal-sheety)  it is much harder than glass  

3 points  

QUESTION 21

1. Sample #13 is the mineral ______________  
2. quartz muscovitefluorite calcite 

3 points  

QUESTION 22

1. There are two samples of #14 in your kit. One should be slightly metallic or "specular" looking. While the other has been oxidized and appears much earthier looking (usually red to reddish gray). Both should leave a red to gray red streak on the streak plate. This mineral is  
2. sphaleritegalena graphite hematite

3 points  

QUESTION 23

1. Sample 15- The color is a good diagnostic tool for this one. What is the name of this mineral?  

3 points  

QUESTION 24

1. Sample #16. This mineral has a _________________ specific gravity than sample 15. It also displays a ___________________ cleavage.  
2. higher - rhombohedral  lower- sheety  higher- cubic  lower- cubic  

3 points  

QUESTION 25

1. Sample # 16 is _____________.  
2. graphite biotitesphalerite  galena 

3 points  

QUESTION 26

1. Sample # 17- This mineral can be tricky. There is a wide range of characteristics that it might display. It usually appears "earthy" it may be from light yellow to a very dark brown. It may be metallic or non-metallic, our samples reflect a non-metallic luster. It's hardness can range from softer than your fingernail to the same hardness of glass. Which mineral is this?  
2. hornblendebiotite  
3. bauxitelimonite 

3 points  

QUESTION 27

1. Sample #18- What special characteristic does this mineral display?  
2. it has a sheety cleavage  it is magnetic  it leaves a bright orange streak  it is softer than my fingernail  

3 points  

QUESTION 28

1. Sample #18  What is the name of this mineral?  _____________.

3 points  

QUESTION 29

1. Sample #19  The cleavage of this mineral is an excellent tool used to identify it. What sort of cleavage does this mineral display?  
2. cubic  (3 directions at 90 degrees)basal (one direction- sheet like)  
3. octahedral  (4 directions)rhombohedral  (3 directions not at 90 degrees)

3 points  

QUESTION 30

1. Sample #19- This mineral should fizz when we drop vinegar on it. If you were able to drop weak hydrochloric acid on it there would be no problem seeing it fizz. Since your lemon juice (or vinegar) may be weak I would take a sharp point and just powder the sample slightly (scrape a small section of the mineral just to get a tiny accumulation of powder and drop your lemon juice or vinegar on it and observe.