Orpiment

Orpiment with barite

Origin: Quirivilca, Lima Dept., Peru

Sample size: 10.5 x 6.5 x 2.8 cm

Orpiment on calcite

Origin: Mercur District, Tooele Co., Utah, U.S.A.

Ex. Richard Hauck collection

Sample size: 4.9 x 4.5 x 3.0 cm

Origin: Twin Creeks Mine, Humboldt County, Nevada, U.S.A.

Sample size: 17.8 x 9.1 x 5.8 cm

Origin: Cut 62, Twin Creeks Mine, Humboldt County, Nevada, U.S.A.

Sample size: 9.5 x 6 x 4 cm

Origin: Elbrusskiy Mine, 35 km NE of Elbruss Mountain , North Caucasus, Russia

Sample size: 5.8 x 3.5 x 1.7 cm (top), 8.0 x 4.2 x 1.6 cm (2nd row), 6.0 x 4.9 x 1.5 cm (bottom)

Photo courtesy of:

Rob Lavinsky

SEM images

TEM images

vibrational spectra description

IR spectra

Raman spectra

N-IR spectra

F-IR spectra

IES spectra