Rocks & Minerals B/C 2017

[John Richardsim]

Alright, for the sake of keeping this going...

ID (Click to Show Hidden Text)

[img]http://www.mindat.org/hpthumbs/HP_76986_800_602.jpg[/img]

[Entomology]

I'm going to go out on a limb because I have no idea (Click to Show Hidden Text)

Hematite?

[John Richardsim]

I'm going to go out on a limb because I have no idea (Click to Show Hidden Text)

Hematite?

Ja ja, you got it! Your turn.

[Entomology]

Here we go (Click to Show Hidden Text)

[img]http://i.imgur.com/Jbxz5cP.jpg[/img]
1. ID
2. This is the main ore of _______
3. Fracture and Tenacity? 
4. The colors that sometime occur on this rock give it what nickname? Hint: It's related to a bird.

[Magikarpmaster629]

Here we go (Click to Show Hidden Text)

[img]http://i.imgur.com/Jbxz5cP.jpg[/img]
1. ID
2. This is the main ore of _______
3. Fracture and Tenacity? 
4. The colors that sometime occur on this rock give it what nickname? Hint: It's related to a bird.

Not a great picture (Click to Show Hidden Text)

1. Bornite
2. Copper
3. Uneven and brittle
4. Peacock ore

[Entomology]

Here we go (Click to Show Hidden Text)

[img]http://i.imgur.com/Jbxz5cP.jpg[/img]
1. ID
2. This is the main ore of _______
3. Fracture and Tenacity? 
4. The colors that sometime occur on this rock give it what nickname? Hint: It's related to a bird.

Not a great picture (Click to Show Hidden Text)

1. Bornite
2. Copper
3. Uneven and brittle
4. Peacock ore

Correct, your turn.
I tried to make the ID a bit harder because I knew the iridescent tarnish would give it away immediately.

[Magikarpmaster629]

1. ID the blue mineral
2. Mineral class
3. A common use for the mineral

[John Richardsim]

1. ID the blue mineral
2. Mineral class
3. A common use for the mineral

Let's see if I can remember (Click to Show Hidden Text)

1. Fluorite
2. Halides
3. Production of hydrofluoric acid

[Magikarpmaster629]

Let's see if I can remember (Click to Show Hidden Text)

1. Fluorite
2. Halides
3. Production of hydrofluoric acid

This one's tricky; when fluorite is cubic it (at least usually) has crystal twinning. However, there is no twinning here, and it is not fluorite.

[Magikarpmaster629]

Let's see if I can remember (Click to Show Hidden Text)

1. Fluorite
2. Halides
3. Production of hydrofluoric acid

This one's tricky; when fluorite is cubic it (at least usually) has crystal twinning. However, there is no twinning here, and it is not fluorite.

It's halite; it's not always transparent colorless. Someone else go.