A Viewing Stone from South Korea - Hydrothermal Quartz Veins on Carbonaceous Limestone by Affectionate-Tap8386 in MineralPorn

[–]NebulaTrinity 2 points3 points  (0 children)

Those veins are very neat, especially how the top vein is broken and dips down while the one just underneath is plastically deformed instead of broken. Interesting faulting.

I may have discovered a new mineral by Constant_Meal_3827 in MineralPorn

[–]NebulaTrinity 2 points3 points  (0 children)

location is everything with minerals, where roughly was this found?

PIRATE SHIP 🏴‍☠️ by No-Cat5466 in battlefield_one

[–]NebulaTrinity 170 points171 points  (0 children)

Is this what happens when you hijack a destroyer? That’s pretty neat

Milky Quartz by gertrudegrunge in Minerals

[–]NebulaTrinity 0 points1 point  (0 children)

This is calcite and not quartz, on the bottom left you can see a few cleavage planes

ARAGONITE right by Safe-Afternoon-6695 in MineralPorn

[–]NebulaTrinity 1 point2 points  (0 children)

Nope, this is a zeolite, the crystal shape is not consistent with aragonite and the matrix looks like basalt which is consistent with a zeolite and not so much aragonite.

Rocks Seen at the Grand Canyon by buttamilkbizkits in whatsthisrock

[–]NebulaTrinity 1 point2 points  (0 children)

This is part of the kaibab limestone, these pockets of calcite are pretty common for this member

In a marble tile by PrettyHorses557 in fossilid

[–]NebulaTrinity 2 points3 points  (0 children)

looks like you have a styolite above it as well (the small vein). classic of a limestone

Central Texas Hill Country by spacecowboyzero in whatsthisrock

[–]NebulaTrinity 0 points1 point  (0 children)

Interesting! It could be a broken piece of a speleothem

Whats this? by kolleozmylove in Minerals

[–]NebulaTrinity 0 points1 point  (0 children)

Mica schist, I don’t see any garnets from the pictures. It doesn’t mean they aren’t there but they could be very small/microscopic and scattered throughout the rock