Scioly.org

Posted: **November 21st, 2011, 7:06 pm**

gypsum

Posted: **November 21st, 2011, 7:09 pm**

ragi wrote:gypsum

Specifically?

Posted: **November 21st, 2011, 7:12 pm**

do you mean like type of gypsum...
gypsum alabaster
hardness 1.5 to 1.2

Posted: **November 21st, 2011, 7:25 pm**

ragi wrote:do you mean like type of gypsum...
gypsum alabaster
hardness 1.5 to 1.2

mmm

Posted: **November 21st, 2011, 7:57 pm**

quizbowl wrote:
ragi wrote:do you mean like type of gypsum...
gypsum alabaster
hardness 1.5 to 1.2
mmm

CaSO4·2H2O

Posted: **November 21st, 2011, 8:06 pm**

ragi wrote:
quizbowl wrote:
ragi wrote:do you mean like type of gypsum...
gypsum alabaster
hardness 1.5 to 1.2
mmm
CaSO4·2H2O

mmm = yep

Posted: **November 22nd, 2011, 5:00 pm**

question (Click to Show Hidden Text)

[url][URL=http://imgur.com/TEKno][img]http://i.imgur.com/TEKno.jpg[/img][/url]/url]

identify

Posted: **November 22nd, 2011, 5:02 pm**

durrr (Click to Show Hidden Text)

biotite mica?

Posted: **November 22nd, 2011, 7:56 pm**

Posted: **November 23rd, 2011, 8:38 am**

Uses?

Rocks and Minerals Question Marathon