Quartz (variety amethyst)

Santa Ana Quarry, Artigas Department  Uruguay (08/2009)

Specimen size: 9.9 × 9.8 × 6.4 cm = 3.90” × 3.86” × 2.52”
Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”