Full Grain Tooling Leather Thick Cowhide Skin Crazy Horse Crafting Arts Leather Material (Caramel, 12"X12")

Has the leather been chemically treated?

Can i make a knife case with this leather?

Is it Chinese made?

What's the best way to initially clean this?The color is rubbing off on my hands and wiping it just causes streaks. It's a beautiful piece of leather