Minerals... crystal ?

Asgardird · Nov 4, 2017

Hi i found few rock and i wonder if u could help id them... i live in canada quebec mountain place... the first picture the rocks are kinda green an if you put close to them a flaslight the light can pass trough a bit and they make a kind of bell sound when hit...the other one is dark small piece probably smoky quartz....the other rock is the first time found one like that so i dont know... kind of dark green white and the color is pink but look orange on picture....the last one is a crystal or quartz

? can scratch glass easily found it while i was panning for gold in a gold bearing rock.....

DDancer · Nov 8, 2017

The first stone reminds me of serpentine in luster and coloration with clean cleavages. As to the second maybe a quartz as I see no real structure and the color of the translucent image reminds me of such. The third is a pegmatite granite and your probably correct about smoky quartz with the fourth. The last crystal I'm unsure as the images are all blurry but it may be a quartz as well, quartz can scratch glass.

Eu_citzen · Nov 8, 2017

I agree on all but #3, I'd be more inclined to just call that granite. Hairsplitting, if you like.

WisconsinPirate · Nov 18, 2017

Is #1 Chlorite instead of serpentine? (the linear lines); quartz; granite; quartz

Clay Diggins · Nov 22, 2017

Antigorite Serpentine typically has striations. The whitish portions are most likely Albite (Feldspar end member) which is commonly associated with Serpentine.

Quite a bit is available on the Black Lake, Mégantic Co. (LAB) mine dumps in Quebec and other Asbestos mines in the region. Of course they were mining Chrysotile Serpentine for the Asbestos but there are also quite a few good specimens of Antigorite found there as well.

The last crystal looks more like Albite than Quartz to me. Albite crystallizes in the Triclinic system which explains the odd termination, vitreous luster and curious axis. You would need to measure angles though because Albite and Quartz are close to the same hardness although Albite is less dense than Quartz.