Vanadian and chromian garnet- and epidote-supergroup minerals in metamorphosed Paleozoic black shales from Čierna Lehota, Strážovské vrchy Mountains, Slovakia: crystal chemistry and evolution

Minerals of the rhönite-kuratite series in paralavas from a new combustion metamorphic complex in the Choir–Nyalga basin (Central Mongolia): composition, mineral assemblages and formation conditions

Ba-RICH K-FELDSPAR FROM MAFIC XENOLITHS WITHIN MESOARCHEAN GRANITIC ROCKS, BEARTOOTH MOUNTAINS, MONTANA, USA: INDICATORS FOR BARIUM METASOMATISM

HYDROTHERMAL EVOLUTION IN THE HOIDAS LAKE VEIN-TYPE REE DEPOSIT, SASKATCHEWAN, CANADA: CONSTRAINTS FROM FLUID INCLUSION MICROTHERMOMETRY AND EVAPORATE MOUND ANALYSIS

Slawsonite-celsian-hyalophane assemblage from a picrite sill (Prague Basin, Czech Republic)

COEXISTING Ba-FELDSPAR AND MELILITE IN A MELAFOIDITE LAVA AT MT. VULTURE, ITALY: ROLE OF VOLATILES AND ALKALINE EARTHS IN BRIDGING A PETROLOGICAL INCOMPATIBILITY

Ba minerals in clinopyroxene rocks from the Myanmar jadeitite area: implications for Ba recycling in subduction zones

Coexistence of pyroxenes jadeite, omphacite, and diopside/hedenbergite in an albite-omphacite rock from a serpentinite mélange in the Kurosegawa Zone of Central Kyushu, Japan

Extremely Pb-rich rock-forming silicates including a beryllian scapolite and associated minerals in a skarn from Långban, Värmland, Sweden

Two-, three- and four-feldspar assemblages with hyalophane and celsian : implications for phase equilibria in BaAl 2 Si 2 O 8 —CaAl 2 Si 2 O 8 —NaAlSi 3 O 8 —KAlSi 3 O 8 * Contribution No. 518 from the Mineralogical Laboratory, Department of Geological Sciences, The University of Michigan 48109–1063.

CELSIAN, (Ba,K)-FELDSPAR AND CYMRITE FROM SEDEX BARITE DEPOSITS OF ZAMORA, SPAIN

Barite-hyalophane sulfidic ores at Rozna, Bohemian Massif, Czech Republic; metamorphosed black shale-hosted submarine exhalative mineralization

Occurrence and genetic implications of hyalophane in manganese-rich iron-formation, Cuyuna Iron Range, Minnesota, USA

Infrared and electron microprobe analysis of ammonium ions in hyalophane feldspar

Hyalophane from Franklin Furnace, New Jersey