Andradite

Origin: Hampshire, Tasmania, Australia

Sample size: 4.9 x 3.2 x 2.8 cm

Andradite on hedenbergite

Origin: Koundouro, Serifos Island, Greece

Ex. Clyde Hardin collection

Sample size: 3.3 x 1.9 x 1.8 cm

Photo courtesy of:

Rob Lavinsky

Origin: Ojos Espanoles Mine, General Lázaro Cárdenas (Lázaro Cárdenas; Colonia Lázaro Cárdenas), Mun. de Julimes, Chihuahua, Mexico

Sample size: 10 x 9 x 6.5 cm

Variety topazolite to 1 mm in size

Origin: 1 mile north of the Gem mine, San Benito Co., California, U.S.A.

Ex. Edward Oyler collection

Sample size: 5 x 4.6 x 4.3 cm

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

Sample size: 2.2 x 1.6 x 4.1 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