I need 3 rocks that disolve.

[Licardo7]

Well, I am doing a science project and my topic is "Which type of rock(from the selected) dissolves faster.

I'm doing it on 3 or 4 rocks but I don't know any rocks that dissolve fast. Google is useless and I need them to continue my project. I already chosen Granite as my first rock and I need about 2 or 3 rocks. I need a rock that can dissolve in about a month or so. It dosn't have to dissolve completely but just a little bit.

Can some one please help me?

 

[Opium]

Sandstone?

 

[m3rox]

middle school/junior high science?

anyway,

http://www.bgs.ac.uk/britainbeneath/haz_soluble.html

edit: to save you the trouble of reading through it:

rock salt
gypsum
limestone

 

[Orc]

Gypsum?

Also: Try Googling for Chemical Weathering.

 

[Licardo7]

middle school/junior high science?

anyway,

http://www.bgs.ac.uk/britainbeneath/haz_soluble.html

edit: to save you the trouble of reading through it:

rock salt
gypsum
limestone

Thanks, I'm in Middle school.

So Ive been searching in the wrong section? Oh well, Thanks for the rocks and the fast response.

 

[BORTZ]

Try crack. just kidding.
Try shale.