What is the difference between Shinwa Leaf - Black and Oxidized Silver leaf - Black?

Shinwa leaf - black is a colored silver leaf, while oxidized silver leaf - black is a  silver leaf that has been sulfurized to the point where the color change is maximized. The sizes are also different: shinwa leaf is 109mm, while oxidized silver leaf is 127mm. oxidized silver - black is more fragile than shinwa leaf, but because the color change of the silver leaf can be felt even in the black, there is a richness in the black color, such as a bluish black or reddish black depending on the angle.

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Oxidized Silver Leaf-Black

Shinwa Kuro