This cent has come in contact with some element that has created salt crystals on surface, just good fun to look at under the scope.
Copper salts
Collapse
X
-
Looks like good `ol Copper Sulfate!
I would get buildups of this on my copper wire electrodes that I used in my tank capacitor for my Tesla coil. Being immersed in saturated salt water, the current sped up the process of creating it a LOT. Had to clean it off all the time!"And he will tell you, skill is late — A Mightier than He —
Has ministered before Him — There's no Vitality."Comment
Comment