[img]http://imgur.com/1m4yoyb.png[/img] Also, give the hardness and mineral group.
Rocks & Minerals B/C ID/Question Marathon
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Re: Rocks & Minerals B/C ID/Question Marathon
Sorry it's late guys.
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Re: Rocks & Minerals B/C ID/Question Marathon
Muscovite, with a hardness of 2.5, in the phyllosilicate group?
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Re: Rocks & Minerals B/C ID/Question Marathon
Nope, not quite.hexagonaria wrote:Muscovite, with a hardness of 2.5, in the phyllosilicate group?
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Re: Rocks & Minerals B/C ID/Question Marathon
calcite, 3, iunno the group. maybe calcite group? lol

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Re: Rocks & Minerals B/C ID/Question Marathon
Nope.balsa wrote:calcite, 3, iunno the group. maybe calcite group? lol
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Re: Rocks & Minerals B/C ID/Question Marathon
Selenite Gypsum...Hardness: 2? I'm rusty from last year...
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Re: Rocks & Minerals B/C ID/Question Marathon
And the mineral group is...?inluvwyth_WANTED wrote:Selenite Gypsum...Hardness: 2? I'm rusty from last year...
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Re: Rocks & Minerals B/C ID/Question Marathon
nlg734 wrote:And the mineral group is...?inluvwyth_WANTED wrote:Selenite Gypsum...Hardness: 2? I'm rusty from last year...
sulfate group. inluvwyth_WANTED can have the next question if this is right
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Re: Rocks & Minerals B/C ID/Question Marathon
Yes, that's right. Inluvwyth_WANTED can go, then.darkdeserthighway wrote:nlg734 wrote:And the mineral group is...?inluvwyth_WANTED wrote:Selenite Gypsum...Hardness: 2? I'm rusty from last year...sulfate group. inluvwyth_WANTED can have the next question if this is right
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Re: Rocks & Minerals B/C ID/Question Marathon
Thanks nlg734. Sorry for the late reply. Here it is

[img]http://www.gemstonebuzz.com/files/gemstone/rough-opal.jpg[/img]