Calcite thin section

Here you can post pictures and videos to show others.
Post Reply
Message
Author
jb89
Posts: 49
Joined: Fri Jun 21, 2019 9:09 am
Location: Denver, Co

Calcite thin section

#1 Post by jb89 » Mon Aug 26, 2019 10:29 pm

Just finished this calcite thin section, it's a fairly soft mineral so it was easy to make at home with sandpaper, I will probably make a new one soon and switch from coarse grit to a finer grit to prevent having the scratches visible in the final product.

I am not sure what this pattern is called in the thin section but it's quite nice to look at, figured you guys might enjoy it!

32x magnification, cross polarized light.
Attachments
calcute.png
calcute.png (510.13 KiB) Viewed 846 times

Sauerkraut
Posts: 196
Joined: Tue Apr 16, 2019 2:07 am
Location: Oregon, USA

Re: Calcite thin section

#2 Post by Sauerkraut » Mon Aug 26, 2019 10:43 pm

That's a cool pattern and nice coloring. Thanks for sharing.

geo_man
Posts: 117
Joined: Mon Jan 21, 2019 4:54 pm

Re: Calcite thin section

#3 Post by geo_man » Tue Aug 27, 2019 12:54 am

Nice! Its crystal twinning. Crystal twinning occurs when two separate crystals share some of the same crystal lattice points in a symmetrical manner. The result is an intergrowth of two separate crystals in a variety of specific configurations (wikipedia).

jb89
Posts: 49
Joined: Fri Jun 21, 2019 9:09 am
Location: Denver, Co

Re: Calcite thin section

#4 Post by jb89 » Wed Aug 28, 2019 1:10 am

geo_man,

I you're absolutely right!

I am aware of twinning but haven't learned much about it in thin section, guess I gotta keep hitting the books!

Post Reply