Cleaning Denim Vest With Mink Lining?

My hunter husband has gotten his denim vest soiled with soil. I want to put it in the washing machine but it has a real mink fur lining and I don't know what washing it will do to the fur. The fur is not dirty only the denim weight, green, army type material is dirty. The fur lining is sewn right with the material, not a zipper lining.