Smithsonite pseudo Calcite on Calcite

San Antonio Mine (San Antonio el Grande Mine), level 8, East Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (04/2013)

Specimen size: 6.2 × 4.1 × 2.9 cm = 2.44” × 1.61” × 1.14”
Main crystal size: 2.3 × 1.1 cm = 0.91” × 0.43”