Perettiite-(Y), Y 3+ 2 Mn 2+ 4 Fe 2 +[Si 2 B 8 O 24 ], a new mineral from Momeik, Myanmar

The hydrogen-bond system in pumpellyite

Chemical alteration patterns in metamict fergusonite

Comment on “Behaviour of H 2 O and OH in lawsonite: a single-crystal neutron diffraction and Raman spectroscopic investigation” by B.A. Kolesov et al.

Raman spectra of isolated and interconnected pyramidal XS 3 groups (X = Sb,Bi) in stibnite, bismuthinite, kermesite, stephanite and bournonite

6 th European Conference on Mineralogy and Spectroscopy: Preface

The effect of As-Sb substitution in the Raman spectra of tetrahedrite-tennantite and pyrargyrite-proustite solid solutions

Vibrational spectroscopy of phase transitions in leonite-type minerals

Crystal chemistry of Ti-bearing andradites

IR spectroscopy of hemimorphite between 82 and 373 K and optical evidence for a low-temperature phase transition

Proton disorder in dehydrated hemimorphite; IR spectroscopy and X-ray structure refinement at low and ambient temperatures

The crystal structure of jankovicite, Tl 5 Sb 9 (As,Sb) 4 S 22

Optical anisotropy in the spinel group; a polishing effect