0130 HESSITE, May Day Mining Co., La Plata Dome, La Plata County, Colorado, U.S.A.

September 28, 2019 Pendleton Colorado North & Central Americas United States

Source D.Garske, 1984

3686 GEARKSUTITE, Grand Reef Mine, Laurel Canyon, Graham County, Arizona, U.S.A.

Arizona North & Central Americas United States

3686 GEARKSUTITE, Grand Reef Mine, Laurel Canyon, Graham County, Arizona, U.S.A.

September 28, 2019

2488 QUARTZ, East Coleman Mine, Jessieville, Garland County, Arkansas, U.S.A.

Arkansas North & Central Americas United States

2488 QUARTZ, East Coleman Mine, Jessieville, Garland County, Arkansas, U.S.A.

September 28, 2019

2159 QUARTZ var. Chalcedony, Turtle Mountains, San Bernardino County, California, U.S.A.

California North & Central Americas United States

2159 QUARTZ var. Chalcedony, Turtle Mountains, San Bernardino County, California, U.S.A.

September 28, 2019

5707 ARSENOPYRITE, Yaogangxian Mine, Yizhang County, Chenzhou Prefecture, Hunan Province, China

5707 ARSENOPYRITE, Yaogangxian Mine, Yizhang County, Chenzhou Prefecture, Hunan Province, China

September 28, 2019