Nickel-image 

Hello Materialscientist,
more info to my: the image shows elecrolytic made nickel. It shows also crystallized out Ni - salts from the electrolysis in the pores of that electrolytic made Ni material. It isn't etched! It is simply an industry product. The current image shows ??? an undefined and blurred "chunk". Think about my image. Perhaps we can exchange it again!? Best regards,