Samsonite is a silver manganese antimony sulfosalt mineral with formula Ag4MnSb2S6.

In thin fragments it appears reddish brown in transmitted light and also leaves a red streak.

It is soft, Mohs hardness of 2.5, and has a specific gravity of 5.51.

It was first named in 1910 after an occurrence in the Samson Vein of the Sankt Andreasberg silver mines, Harz Mountains, Germany.

This article about a specific sulfide mineral is a stub.