Calcite with Hematite inclusions

J North, 18-19 levels, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (±1990)

Specimen size: 11.2 × 10.2 × 9.9 cm = 4.41” × 4.02” × 3.90”
Main crystal size: 9 × 5.2 cm = 3.54” × 2.05”