Matter
Name
Na-Montmorillonite SWy-2, 280-400 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 IPAG
Provider reference code
SWy-2
Local reference code
Smectite CMS SWy-2 - 280-400mic
Body name
Earth
Image
Pictures of the 280-400 µm grain size fraction of SWy-2 smectite particles taken under a binocular microscope at three different zoom levels (zoom level increases from left (5mm FS) to right (1mm FS))
Preparation
selected components
Method
Wyoming Bentonite purchased from Source Clays Repository (The Clay Minerals Society). Dry sieved at IPAG
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
#1 280.0 ${\mu}m$ 400.0 ${\mu}m$ 1.0 aggregate
Size method
dry sieving between 280 and 400 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) 0.6 $\pm$ 0.15
Quartz homogeneously mixed 0.1 $\pm$ 0.05
Plagioclase homogeneously mixed 0.2 $\pm$ 0.1
Gypsum homogeneously mixed 0.015 $\pm$ 0.004
Calcite homogeneously mixed 0.01 $\pm$ 0.003
Illite homogeneously mixed 0.004 $\pm$ 0.002
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 meshs between 280 and 400 µm

Precursors

Matters

Produced matter

Matter
Na-Montmorillonite SWy-2, 280-400 microns (this matter)
Processing steps
Step Date Type Process Changes
#1 2007-01-01 mechanical manual dry sieving of the raw matter (without grinding) with sieve meshs between 280 and 400 µm possible larger fraction of Na-Montmorillonite in this small grain size fraction than in the raw matter (0-1mm)
Comments
ambient temperature - 293 K and ambient pressure - 1 bar
Links
Publications