Paseroite, PbMn 2+ (Mn 2+ ,Fe 2+ ) 2 (V 5+ ,Ti,Fe 3+ , □) 18 O 38 , a new member of the crichtonite group

A survey of hybrid twins in silicate minerals

Polytypic and polymorphic relations between sazhinite and isochemical alkali-REE layer silicates

The standardisation of mineral group hierarchies: application to recent nomenclature proposals

A survey of hybrid twins in non-silicate minerals

Two new members of the rhodesite mero-plesiotype series close to delhayelite and hydrodelhayelite: synthesis and crystal structure

Nechelyustovite, a new heterophyllosilicate mineral, and new data on bykovaite: a comparative TEM study

Microporous titanosilicates – Synthesis and structural characterization of a new orthorhombic-type labuntsovite

The oriented attachment mechanism in the formation of twins - a survey

Nomenclature of amphiboles : additions and revisions to the International Mineralogical Association's amphibole nomenclature

X-ray single-crystal structure refinement of an OH-rich topaz from Sulu UHP terrane (Eastern China) – Structural foundation of the correlation between cell parameters and fluorine content

Shirokshinite, K(NaMg 2 )Si 4 O 10 F 2 , a new mica with octahedral Na from Khibiny massif, Kola Peninsula: descriptive data and structural disorder

Deprotonation and order-disorder reactions as a function of temperature in a phengite 3 T (Cima Pal, western Alps) by neutron diffraction and Mössbauer spectroscopy

New minerals approved in 2001 by the Commission on New Minerals and Mineral Names International Mineralogical Association

First structure determination of an MDO-2 O mica polytype associated with a 1 M polytype 1 Dedicated to Professor Boris B. Zvyagin, in occasion of his 80th birthday, for his pioneering contributions to the polytypism of layer silicates.

Coexisting 3 T and 2 M 1 polytypes of phengite from Cima Pal (Val Savenca, western Alps) : Chemical and polytypic zoning and structural characterisation

Effects of the stacking faults on the calculated electron density of mica polytypes — The urovič effect

M1-site occupancy in 3 T and 2 M 1 phengites by low temperature neutron powder diffraction : reality or artefact?

New minerals approved in 2000 by the Commission on New Minerals and Mineral Names International Mineralogical Association

Raadeite, Mg 7 (PO 4 ) 2 (OH) 8 : a new dense-packed phosphate from Modum (Norway)