Stibnite on Quartz

McLaughlin Mine, Knoxville, Knoxville District, Napa County, California  USA

Specimen size: 3 × 2.8 × 3.3 cm = 1.18” × 1.10” × 1.30”
Main crystal size: 1.1 × 0.1 cm = 0.43” × 0.04”