▎ 摘　　要

NOVELTY - A black magnetic fingerprint powder comprises 40-60 pts. wt. magnetic powder, 15-25 pts. wt. fingerprint powder and 2-5 pts. wt. graphene. USE - Black magnetic fingerprint powder (claimed). ADVANTAGE - The black magnetic fingerprint powder has excellent visual effect. The magnetic powder, fingerprint powder and graphene ensures original characteristic of fingerprint and improves accuracy of fingerprint manifestation. The iron oxide deepens fingerprint color. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of black magnetic fingerprint powder.