
Inktober dia 20 DEEP: la primera fortaleza de Melkor, Utumno #inktober #inktober2017 #tolkien #sketchbook… https://t.co/skKn8xd3v0

Inktober dia 20 DEEP: la primera fortaleza de Melkor, Utumno #inktober #inktober2017 #tolkien #sketchbook… https://t.co/skKn8xd3v0
Polished, acid-etched sphere of an iron-nickel meteorite. The pattern of intergrown crystals is called a Widmanstätten pattern. I’m not sure I’ve ever seen it in a sphere before – looks like some of the crystals actually go from side to side and basically create circles on this surface!