Matter
Name
Iron suphide sub-µm grains
Family
mineral
Level
local matter
Origins
laboratory
Provider
Alfa-aesar
Preparation
raw
Phase type
solid
Component type (group)
mineral (non-silicate mineral)
Shape
granular powder
Texture
loose granular
Type of porosity
particulate
Texture
compact
Grain sizes
Grains Size min Size max Size median Size width Size mass fraction Grain shape
#1 0.0 ${\mu}m$ 0.15 ${\mu}m$ 0.343 irregular
#2 0.15 ${\mu}m$ 0.3 ${\mu}m$ 0.331 irregular
#3 0.3 ${\mu}m$ 0.6 ${\mu}m$ 0.211 irregular
#4 0.6 ${\mu}m$ 1.0 ${\mu}m$ 0.078 irregular
#5 1.0 ${\mu}m$ 1.5 ${\mu}m$ 0.03 irregular
#6 1.5 ${\mu}m$ 2.0 ${\mu}m$ 0.004 irregular
#7 2.0 ${\mu}m$ 2.5 ${\mu}m$ 0.001 irregular
Size distribution
The average grain size is 0.30 µm, and the standard deviation 0.28 µm. The size distribution of the counted grains is provided in the documentation section below.
Size method
Manual counting on Scanning Electron Microscopy images on sub-micrometric particles
Number
2
Mode of mixing
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Irregular grains of troilite 0.55
Irregular grains of pyrrhotite 0.45
Title
Ethanol wet grinded with a Retsch PM100 planetary ginder from grains smaller than 50 microns

Produced matter

Matter
Iron suphide sub-µm grains (this matter)
Processing steps
Step Date Type Process Changes
#1 mechanical Millimetric materials are dry grinded for 20 with 15 mm ZrO2 grinding balls in a Retsch PM100 Planetary grinder . Sub-millimetric powders are produced.
#1 mechanical Sub-millimetric powders are dry grinded for 20 with 2 mm ZrO2 grinding balls in a Retsch PM100 Planetary grinder . Grains smaller than 50 microns are produced.
#3 mechanical Grains smaller than 50 microns are grinded for 150 minutes in ethanol with 500 microns ZrO2 grinding balls in a Retsch PM100 Planetary grinder. Sub-micrometrics grains are produces.