Barite

Origin: Miekle Mine, Elko County, Nevada, U.S.A.

Sample size: 9.3 x 7.1 x 5.8 cm

Origin: Sherman Tunnel, Leadville Dist., Lake Co., Colorado, U.S.A.

Ex. Gary Hansen collection

Sample size: 3.4 x 2.8 x 1.5 cm

Origin: Villamassargia, Sardinia, Italy

Sample size: 6.9 x 6.8 x 4.8 cm

Barite on quartz

Origin: Senorita Mine, Ouray County, Colorado, U.S.A.

Sample size: 6.0 x 4.7 x 3.0 cm

Barite on malachite

Origin: Kolwezi, Shaba Province, Zaire

Sample size: 7.9 x 5.9 x 5.9 cm

Barite on calcite

Origin: Elk Creek, Meade County, South Dakota, U.S.A.

Ex. Edward E. David collection

Sample size: 11.8 x 10.9 x 7.6 cm

Photo courtesy of:

Rob Lavinsky

TEM images

IR spectra

N-IR spectra

F-IR spectra

IES spectra