Pyroxene OH Spectra

Pyroxene Infrared Spectra in the OH region (generally 4000 - 3000 cm^-1)

Enstatite, HS 37 image. Enstatite, MD-57 (Mg_1.72), from Chichijma, Bonin Islands, Japan. Image normalized to 1.0 mm thickness. Data files: alpha, 45K; beta, 45K; gamma, 45K;
Enstatite, HS 59, image. Enstatite, GRR 40 (Mg_1.70), from Bamble, Norway. Image normalized to 1.0 mm thickness. Contamination from layer silicates is apparent above 3600 cm^-1.
Enstatite, HS 53, image. Enstatite, GRR 1650a (Mg_1.73), from India. Image normalized to 1.0 mm thickness.
Enstatite, HS 48, image. Enstatite, PMR-54 (Mg_1.73), from the Premier Mine, South Africa. Image normalized to 1.0 mm thickness.

Aegirine CIT 11832 image; 4K. Aegirine from a nepeline syenite pegmatite from Magnet Cove, Arkansas, USA. Image normalized to 1.0 mm thickness. Data files: a, 30K; b, 32K; c, 29K;
Augite GRR 1646 image; 4K. Augite from a xenocryst in a mantle diatreme from Hopi Butte, Arizona, USA. Image normalized to 1.0 mm thickness. Data files: a, 30K; b, 32K; c, 29K;
Diopside CIT 11221 image; 4K. Diopside from a methmorphic deposit at Rajasthan, India. Image normalized to 1.0 mm thickness. Data files: a, 30K; b, 32K; c, 29K;
Ompacite HRV 147 image; 4K. Ompacite from an eclogite xenolith in the Roberts Victor kimberlite, South Africa. This is one of the most hydrous clinopyroxenes we have encountered to date. Image normalized to 1.0 mm thickness. Data files: a, 30K; b, 32K; c, 29K;