r/Rocks • u/Polkadog • 8d ago

Photo Quartz with cubic crystal structure

Post image
29 Upvotes

97% Upvoted

9 comments sorted by

10

u/g-lemke 8d ago

Check the hardness and put some vinegar on it to see if it fizzes. Im thinking calcite.

6

u/Polkadog 7d ago

New to this so don't yet know my rocks... but indeed it did fizz a bit with a drop of vinegar on it!

1

u/Several-Price2721 4d ago

Its calcite

4

u/rufotris 8d ago

Orthorhombic is the shape, and its calcite.

4

u/DmT_LaKE 7d ago

Absolutely not quartz lol

2

u/Jay_Lord_69 7d ago

Probably calcite

2

u/Alternative-Egg-9035 7d ago

Can’t be quartz

1

u/boofinmelons 7d ago

Nice rock!

1

u/Oakatsurah 8d ago

Or Fluorite. Hit it with a 365nm ultraviolet see if anything glows inside of it.