Matter
Name
Na-Montmorillonite SWy-2, 0-80 microns
Family
Family
solid
Comments
impurities 13.3% (wt.%) in the fraction < 2µm: 5.2% Quartz, 0.1% Plagioclase, 0.4% Calcite, 0.2% Dolomite, 1.3% Kaolinite, 0.2% Chlorite, 4.4% Clinopyroxene, 1.4% Orthopyroxene - Vogt et al. 2002
Database
Experimentalists
Parent matter
Na-Montmorillonite SWy-2
Origins
natural terrestrial
Provider
Source Clays Repository - The Clay Minerals Society. Processed at the University of Bern
Provider reference code
SWy-2
Local reference code
Smectite SWy-2 0-80m
Body name
Earth
Place
Planetary Imaging Group, WP, University of Bern, Switzerland
Image
Scanning Electron Microscope images of the particles of Swy-2 smectite after sieving using an 80 μm sieve. The grains of smectite are made of clusters of clay platelets (tactoids).
Preparation
selected components
Method
Wyoming Bentonite purchased from Source Clays Repository (The Clay Minerals Society). Dry sieved at University of Bern
Phase type
solid
Component type (group)
mineral (silicate mineral), mineral (non-silicate mineral)
Shape
undefined (loose)
Texture
earthy
Type of porosity
open pores
Texture
clay-like
Grain sizes
Grains Size min Size max Size median Size width Size mass fraction Grain shape
#1 0.0 ${\mu}m$ 80.0 ${\mu}m$ 1.0 aggregate
Size method
dry sieving with 80 µm meshs, without grinding
Comments
weakly consolidated aggregates (of < 2µm particles) with complex shape often elongated and relatively far from spheroids
Oxides comments
no analysis of the selected size fraction
Number
11
Mode of mixing
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Na-Montmorillonite with adsorbed and interlayer water homogeneously mixed (with interlayer and adsorbed water) 0.8 $\pm$ 0.1
Quartz homogeneously mixed 0.06 $\pm$ 0.02
Plagioclase homogeneously mixed 0.08 $\pm$ 0.05
Gypsum homogeneously mixed 0.005 $\pm$ 0.004
Calcite homogeneously mixed 0.005 $\pm$ 0.002
Illite homogeneously mixed 0.001 $\pm$ 0.001
Dolomite homogeneously mixed 0.002 $\pm$ 0.002
Kaolinite homogeneously mixed 0.013 $\pm$ 0.01
Chlorites homogeneously mixed 0.002 $\pm$ 0.002
Clinopyroxenes homogeneously mixed 0.044 $\pm$ 0.04
Orthopyroxenes homogeneously mixed 0.014 $\pm$ 0.01
Title
manual dry sieving of the raw matter (without grinding) with sieve mesh of 80 µm

Precursors

Matters

Produced matter

Matter
Na-Montmorillonite SWy-2, 0-80 microns (this matter)
Processing steps
Step Date Type Process Changes
#1 2014-07-01 mechanical manual dry sieving of the raw matter (without grinding) with sieve mesh of 80 µm
Comments
ambient temperature - 293 K and ambient pressure - 1 bar
Links
Publications