Ramsdellite

Mistake Mine, Sam Powell Peak, Box Canyon, Yavapai County, Arizona  USA (±1993)

Specimen size: 6 × 3.1 × 2.4 cm = 2.36” × 1.22” × 0.94”
Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”