Andradite

Andradite on clinochlore

Origin: near Jalalabad, Afghanistan

Sample size: 3.8 x 3 x 2 cm (top/2nd row), 4 x 3.5 x 2.5 cm (3rd/4th row), 5.6 x 3.8 x 2.2 cm (5th row), 4.5 x 3 x 3 cm (bottom)

Photo courtesy of:

John Veevaert, Trinity Mineral Co

Origin: Headwaters of San Benito River, San Benito Co., California, U.S.A.

Sample size: 7.2 x 4.8 x 3.3 cm

Variety melanite

Origin: San Benito Co., California, U.S.A.

Sample size: 11.2 x 6.6 x 2.2 cm

Origin: Stanley Butte, Graham Co., Arizona, U.S.A.

Sample size: 6.5 x 6.5 x 3.1 cm

Photo courtesy of:

Dan Weinrich

SEM images

TEM images

vibrational spectra description

IR spectra

Raman spectra

N-IR spectra

F-IR spectra

IES spectra