Matter
Name
Ferruginous smectite SWa-1
Family
Family
mineral
Database
Origins
natural terrestrial
Provider
Source Clays Repository - The Clay Minerals Society, Purdue University, West Lafayette, IN, USA
Local reference code
SWa-1
Body name
Earth
Place
Columbia River Basalts Group, 47°16'45'' N 119°58'59''W, near Trinidad, Grant County, Washington, USA
Preparation
raw
Phase type
solid
Component type (group)
mineral (silicate mineral), mineral (non-silicate mineral)
Texture
earthy
Type of porosity
particulate
Texture
clay-like
Number
4
Mode of mixing
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Montmorillonite homogeneously mixed (with interlayer and adsorbed water) 0.9 $\pm$ 0.1 Composition known only at qualitative level, with Fe-smectite as a dominant component
Goethite homogeneously mixed 0.04 $\pm$ 0.02 Known impurity
Quartz homogeneously mixed 0.03 $\pm$ 0.02 Known impurity
Calcite homogeneously mixed 0.03 $\pm$ 0.02 Known impurity
Links
Publications