Ruby Jack Sphalerite from the renowned Tri-State Lead-Zinc Mining District in Jasper County, Missouri. This striking specimen showcases the characteristic deep red coloration and lustrous crystalline structure typical of ruby jack varieties. Measuring 3.5 x 4 x 5.5 cm, it presents an excellent display piece for mineral enthusiasts and serious collectors. A notable example of classic American sphalerite with strong geological provenance and collector appeal.
