Rocks & Minerals B/C ID/Question Marathon

[AstroRockShock]

Okay seems like I am going next:
Identify this mineral:

Is it (Click to Show Hidden Text)

Kaolinite?

Correct!
Your turn!

[alpacalypse]

Identify this mineral:

[AstroRockShock]

Identify this mineral:

I kind of think this is... (Click to Show Hidden Text)

Either Halite or Flourite but my final answer is Flourite

[alpacalypse]

Fluorite is correct! Your turn.

[AstroRockShock]

Answer all 3 questions:

1. Identify the specimen (image)
2. What is it's hardness?
3. What is it's scientific formula (chemical composition)?

[Tiktaalik]

Answer all 3 questions:

1. Identify the specimen (image)
2. What is it's hardness?
3. What is it's scientific formula (chemical composition)?

I'm thinking it's (Click to Show Hidden Text)

1. halite
2. 2-2.5
3. NaCl

[AstroRockShock]

Answer all 3 questions:

1. Identify the specimen (image)
2. What is it's hardness?
3. What is it's scientific formula (chemical composition)?

I'm thinking it's (Click to Show Hidden Text)

1. halite
2. 2-2.5
3. NaCl

Sorry, that answer isn't correct.
(Well, at least the first one isn't therefore 2 and 3 should be wrong...)
But it was a good guess, I thought that could be a possibility too.

[ali941]

I'll try this (Click to Show Hidden Text)

Calcite, Hardness 3, CaCO3.  Probably wrong, but oh well.

[technomario]

How do you hide a message?

[AstroRockShock]

I'll try this (Click to Show Hidden Text)

Calcite, Hardness 3, CaCO3.  Probably wrong, but oh well.

Yes!
All correct, your turn.