FQ26M2: Cubic colorless Fluorite crystals showing faces paved by re-growths of smaller cubes accompanied by well defined Sphalerite crystals and small Chalcopyrite crystals on a rich Quartz crystal matrix.
This sample has been noted and photographed in the Mineralogical Record magazine (January-February 2018, pg. 163)
San Antonio Mine (San Antonio el Grande Mine), level 13, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (±2004)

Specimen size: 8.2 × 6.6 × 4.2 cm = 3.23” × 2.60” × 1.65”

Main crystal size: 3 × 2.2 cm = 1.18” × 0.87”