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NEW DATA ON SEPIOLITE AND ATTAPULGITE     SEPIOLITE  ATTAPULGITE  DATA       2011/11/15
Hydrothermal studies have failed to yield synthetic attapulgite or sepiolites in the system MgO-AI~O3-SiOr-H~O. However, the natural minerals can be decomposed to yield montmorillonoids by mild hydrot...
Structuralandvolumecompressibilitydataforreedmergnerite,NaBSi O ,wereobtained3 8 bysingle-crystalX-raydiffractionatpressuresupto4.7GPa.Thebulkmoduluswas determinedtobe69.8(5)GPawiththepressurederiva...
Thisworkpresentsaproceduredevelopedfortraceelementanalysisusingtheelectron microprobe(EMP).Themethodisdemonstratedbyanalysisofsevenglassesprepared fromreferencerockpowders,withcompositionsofgranite,...
A hydrous zinc- and sodium-rich hydroxy-chlorosulfate, discovered in a sulfide sample collected by the Deep Sea Recovery Vehicle (DSRV) Alvin in 1984, is identified as gor-daite, Zn4Na(OH)6SO4Cl·6H2O,...
Synthetic 2-line and 6-line ferrihydrite samples prepared from ferric nitrate solutions have the bulk compositions Fe4(O,OH,H20)12 and Fe4.6(O,OH,H2O)12, respectively. The composition depends on cryst...
New information is presented relating to the hydrothermal stability, lattice parameters, and adsorptive, electrical, and catalytic properties of synthetic and natural faujasite. Present concepts conce...
New Data for Tosudite     New Data  Tosudite  alteration mineral       2012/2/20
Tosudite from the Takatama mine is found as an alteration mineral of the wall rocks (tuff and tuffaceous sediments of Tertiary age) of gold-silver-quartz veins. A specimen free from impurities was obt...

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