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Parameters Influencing Layer Stacking Types in Saponite and Vermiculite: A Review
Layer charge Layer stacking Relative humidity Saponite Vermiculite
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2012/1/11
Saponites and vermiculites may assume at least 11 ordered or semi-ordered layer stacking sequences. For a given relative humidity, the layer stacking type assumed is a function of the nature of the in...
Saponite from Near Ballarat, California
Engineering properties Hydrothermal alteration Saponite Sepiolite Source clay X-ray powder diffraction
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2012/2/3
White saponite occurs in joints and open fracture zones in metamorphosed dolomitic limestone near Ballarat, California. The saponite appears to have formed by hydrothermal alteration, possibly during ...
Hydrothermal Reactivity of Saponite
Chlorite/saponite Hydrothermal stability Potassium Saponite Saponite/phlogopite Talc/saponite
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2011/11/23
Abstract: Saponite crystallizes from amorphous gel having an ideal saponite composition within 7 days at all experimental temperatures between 300° and 550°C at 1 kbar pressure. Reactions subsequent t...
Swelling and Structural Organization of Saponite
Swelling Structural Organization Saponite
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2011/11/18
Abstract: The structural formula of Kozákov saponite (Czechoslovakia) is as follows: Na0·005 Ca0·22 K0·01 [Si3·30 Al0·68 Fe 3+ 0·02][Mg2·50 Fe 2+ 0·26 Fe 3+ 0·24] O 10(OH)2. Saturated with 6 different...
Hisingerite Occurring as a Weathering Product of Iron-Rich Saponite
Hisingerite Occurring Iron-Rich Saponite
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2012/2/14
Hisingerite occurs as a weathering product of iron-rich saponite in rhyolitic tuff of Oya, Tochigi Prefecture. The chemical composition: SiO2, 40·68%; Al2O3, 4·44%; Fe2O3, 28·54%; MgO, 1·85%; CaO, 1·4...
Nickel Containing Regularly Interstratified Chlorite-Saponite from Szklary, Lower Silesia, Poland
Chlorite-Saponite Lower Silesia new mineral species
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2012/2/13
The present paper describes a new mineral species, namely a regularly interstratified chlorite —trioctahedral smectite bearing as much as 24% NiO. The high Ni content proves it to be nickel mineral.On...
Iron-Rich Saponite (Ferrous and Ferric Forms)
Iron-Rich Saponite Ferrous Ferric Forms
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2012/2/15
Clayey fragments colored deep bluish-green are widely found in glassy rhyolitic tuffs at Oya, Tochigi Prefecture. In room-air the color changes to black or gray within one hour and finally to brown in...