Significance of tridymite distribution during cooling and vapor-phase alteration of ignimbrites

Nepheline solid solution compositions: stoichiometry revisited, reviewed, clarified and rationalised

Experimental observations of TiO 2 activity in rutile-undersaturated melts

Fluorapophyllite-(NH 4 ), NH 4 Ca 4 (Si 8 O 20 )F⋅8H 2 O, a new member of the apophyllite group from the Vechec quarry, eastern Slovakia

Secondary minerals associated with Lassen fumaroles and hot springs: Implications for martian hydrothermal deposits

Ferri-obertiite from the Rothenberg quarry, Eifel volcanic complex, Germany: mineral data and crystal chemistry of a new amphibole end-member

Phase and compositional analysis of a Sèvres soft paste porcelain plate from 1781, with a review of early porcelain techniques

Magnesio-ferri-fluoro-hornblende from Portoscuso, Sardinia, Italy: description of a newly approved member of the amphibole supergroup

Experimental confirmation of high-temperature silicate liquid immiscibility in multicomponent ferrobasaltic systems

Discovery of stishovite in Apollo 15299 sample

Occurrence of silica polymorphs nanocrystals in tuffaceous rocks, Province of the Mesa Central, Mexico, and their formation from subcritical Si-rich fluids

Quantifying crystallization and devitrification of rhyolites by means of X-ray diffraction and electron microprobe analysis

Relationship between IR spectra and crystal structures of β-tridymite-like CsM 2+ PO 4 compounds

Buseckite, (Fe,Zn,Mn)S, a new mineral from the Zakłodzie meteorite

Monoclinic tridymite in clast-rich impact melt rock from the Chesapeake Bay impact structure

Fayalite-sekaninaite paralava from the Ravat coal fire ( central Tajikistan )

Cathodoluminescence characterization of tridymite and cristobalite: Effects of electron irradiation and sample temperature

THE STRUCTURE OF “ORTHORHOMBIC” KAlSiO 4 - O1 : EVIDENCE FOR Al–Si ORDER FROM MAS NMR DATA COMBINED WITH RIETVELD REFINEMENT AND ELECTRON MICROSCOPY

Seifertite, a dense orthorhombic polymorph of silica from the Martian meteorites Shergotty and Zagami

On the existence of a Na-deficient monoclinic trinepheline with composition Na 7.85 Al 7.85 Si 8.15 O 32