Ottrelite

Origin: Ottré, Ardennes, Belgium

Sample size: 4 x 3 x 2 cm, dark green crystals to 1 mm

Photo courtesy of:

Tom Loomis

1 mm sized black platy crystals in schist

Origin: Ottré, Belgium (type locality)

Sample size: 3 x 5 cm

Photo courtesy of:

Diederik Visser

Ex. Martin Zinn collection

Origin: Ottré, Stavelot Massif, Luxembourg Province, Belgium (type locality)

Sample size: 7.1 x 4.2 x 2.1 cm (top), 4.5 x 3.6 x 1.9 cm (bottom)

Origin: Salmchateau, Luxembourg, Belgium

Sample size: 28.3 x 12 x 2.1 cm

Photo courtesy of:

Rob Lavinsky

Optical properties/Thin sections

SEM images

TEM images

vibrational spectra description

IR spectra

Raman spectra

N-IR spectra

F-IR spectra

IES spectra