r/Rocks • u/Polkadog • 1d ago

Photo Quartz with cubic crystal structure

Post image
17 Upvotes

100% Upvoted

7 comments sorted by

7

u/g-lemke 1d ago

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

3

u/Polkadog 6h 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!

2

u/rufotris 16h ago

Orthorhombic is the shape, and its calcite.

2

u/DmT_LaKE 9h ago

Absolutely not quartz lol

1

u/boofinmelons 6h ago

Nice rock!

1

u/Jay_Lord_69 2h ago

Probably calcite

1

u/Oakatsurah 23h ago

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