Rocks and Minerals Question Marathon

[wufactor2012]

talc Use: baby powder

[darkdeserthighway]

correct, your turn

[wufactor2012]

Id this (Click to Show Hidden Text)

[img]https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSRj09i0DZ4COWuOqSU76FJQ9o8-SLLJTwq6WkhimVn_VYsfUfu[/img]
What is this rock and name a variety of it?

[hotchocolate123]

Id this (Click to Show Hidden Text)

[img]https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSRj09i0DZ4COWuOqSU76FJQ9o8-SLLJTwq6WkhimVn_VYsfUfu[/img]
What is this rock and name a variety of it?

This is Phyllite
EDIT: As for varieties... Chloritic Phyllite? Its a greenish type of phyllite that contains lots of chlorite

[wufactor2012]

your turn !!! do you know any more varieties of phyllite though

[hotchocolate123]

Identify this: (Click to Show Hidden Text)

[img]http://www.digforgems.com/schorl2.jpg[/img]

Also, what is this specimen a variety of and what are some of its uses?

And... I really don't know any varieties (other than red and green) of Phyllite

[Allinea]

? (Click to Show Hidden Text)

Schorl, tourmaline, piezoelectrics (if internally flawless)

[wufactor2012]

I agree

[hotchocolate123]

? (Click to Show Hidden Text)

Schorl, tourmaline, piezoelectrics (if internally flawless)

Correct!

[Allinea]

Identify all 3 of the minerals shown here. (Click to Show Hidden Text)

[img]http://www.exceptionalminerals.com/Tucson2010-343SphaleriteGalenaAmethystCreedeColorado.jpg[/img]