a unique find due to the way it was formed, at the right angle you can see a rainbow! perfect to place near a window to get rainbows reflected across your room if you find the right position! there are man made versions of these crystals but with this one you can have a piece of beauty manufactured by good old Mother Earth herself
via truth minerals.com “Strain and stress under ground, temperature variations and damage during exhumation can all create tiny cracks within crystals. In quartz crystals these cracks are typically conchoidal fractures- which just means they're curved and typically have ringed ridges along the fracture surfaces. (Think broken beer bottle.)
When light passes through a quartz crystal- then through an internal fracture surface within the crystal- it reflects & disperses along this interface- shooting gleaming rainbow patterns back to your eyes.”