I love pyrite and I have some nice cubes in my collection. I'm asked surprisingly often how humans "make" them look like this. So for anyone wondering, crystals growing intertwined like this is normal and called penetration twinning. It happens in other minerals too.
[–] 8177336? 0 points 1 point 1 point (+1|-0) ago
I love pyrite and I have some nice cubes in my collection. I'm asked surprisingly often how humans "make" them look like this. So for anyone wondering, crystals growing intertwined like this is normal and called penetration twinning. It happens in other minerals too.
[–] The_Cat [S] ago
Indeed, and a wonderful illustration of both crystal structure and crystal defects.