Matter
Name
Ca-Mg-Fe-silicate glass with pyroxene stoichiometry, cosmic composition
Family
Family
solid
Database
Experimentalists
Level
local matter
Origins
laboratory
Provider
Astrophysical Institute and University Observatory Jena
Local reference code
STW 2 (1S)
Preparation
selected components
Method
selection of homogeneous glassy parts under microscope inspection
Phase type
solid
Texture
compact glassy
Type of porosity
without pores
Density
3.2 g.cm−3
Grain density
3.2 g.cm−3
Oxides
Formula MgO FeO CaO SiO2
Mass fraction (%) 0.184 0.264 0.018 0.534
Number
1
Mode of mixing
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Ca-Mg-Fe-silicate glass with pyroxene stoichiometry, cosmic composition 1.0
Title
Melting and quenching by copper rollers

Produced matter

Matter
Ca-Mg-Fe-silicate glass with pyroxene stoichiometry, cosmic composition (this matter)
Processing steps
Step Date Type Process Changes
#1 mixing magnesium carbonate, ferrous oxalate, calcium carbonate, and silicon dioxide are mixed in appropriate portions
#2 thermal pellets pressed from the parent mixture were melted in an electric-arc furnace under Ar atmosphere
#3 thermal quenched to room temperature by fast compression between two copper pistons
Publications