Clintonite

Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska  USA

Specimen size: 7.4 × 4.7 × 2.3 cm = 2.91” × 1.85” × 0.91”
Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”