Comment on 25 Theme Challenge: Trouble Lurking by SailorEnergy
nice. last time i saw a Dentritic (maybe thinking of something slightly different hear) structure was when i was doing metalergy
Yes, you would see some in metallurgy. Some dentrities are manganese on some minerals including agates. 
OH! well that would explain it. it's very pretty. I've also watched microscopic images of metal as it cools. it's kinda fun watching those structures grow
Yep.
Yes, crystallinzing.
Yes, crystallinzing.
yep