Matter
Name
Anorthosite
Family
mineral
Origins
natural terrestrial
Provider
Prof. Ottavia Zeda, Department of Earth Sciences, University of Parma
Body name
Earth
Place
Stillwater Complex, Montana, USA
Preparation
raw
Phase type
solid
Component type (group)
igneous rock (plutonic rock (coarse-grained crystalline rock))
Comments
collected during a field trip
Shape
compact
Texture
compact
Type of porosity
without pores
Density
2.748 $\pm$ 0.002 $g.cm^{-3}$
Grain density
2.748 $\pm$ 0.002 $g.cm^{-3}$
Comments
holocrystalline, cumulitic
Oxides
Formula $SiO_{2}$ $TiO_{2}$ $Al_{2}O_{3}$ $Fe_{2}O_{3}$ $MnO$ $MgO$ $CaO$ $Na_{2}O$ $K_{2}O$ $P_{2}O_{5}$
Mass fraction (%) 48.7 0.09 29.44 1.79 0.03 2.05 15.92 2.25 0.08 0.01
Oxides comments
Fe2O3 is total iron amount
Number
1
Mode of mixing
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
holocrystaline cumulitic anorthosite 1.0