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Posted: **September 14th, 2013, 4:38 pm**

Hide (Click to Show Hidden Text)

I believe that's Opal.

Posted: **September 17th, 2013, 6:30 pm**

hey (Click to Show Hidden Text)

opal

Posted: **September 17th, 2013, 7:29 pm**

syo_astro wrote:
Hide (Click to Show Hidden Text)
I believe that's Opal.

Correct. Your turn.

Posted: **September 18th, 2013, 7:42 pm**

ID and explain formation environment (Click to Show Hidden Text)

[img]http://www.artesanum.com/upload/postal/7/6/7/apatite_crystal_weigth;60_5_c-206370.jpg[/img]

Posted: **September 18th, 2013, 8:02 pm**

hmmm (Click to Show Hidden Text)

apatite, usually form near or with igneous rocks

Posted: **September 19th, 2013, 1:39 pm**

Right mineral, but I thought for the environment it occurred in was any type?

Posted: **September 19th, 2013, 3:29 pm**

Well yeah it also occurs many other places but I think it mostly form near igneous or with igneous rocks

Posted: **September 19th, 2013, 5:02 pm**

Well, you can go.

Posted: **September 20th, 2013, 5:53 pm**

here it is (Click to Show Hidden Text)

[img]http://www.gemstonebuzz.com/files/gemstone/topaz.jpg[/img]

Posted: **September 20th, 2013, 7:48 pm**

It is (Click to Show Hidden Text)

Topaz

Rocks & Minerals B/C ID/Question Marathon