Formula: AsSbS₃

Species:

Colour: Dark blood red

Lustre: Resinous

Hardness: 1½ – 2

Specific Gravity: 3.92

Crystal System: Monoclinic

Name: Named after the type locality, the Getchell Mine, Adam Peak, Potosi District, Humboldt Co., Nevada – USA.

Type Locality: Getchell Mine, Adam Peak, Potosi Mining District, Osgood Mountains, Humboldt County, Nevada – USA