Matter
- Name
- Regolith simulant JSC Mars-1
- Family
- solid
- Database
- Origins
- natural terrestrial
- Provider
- Office of the Curator, NASA Johnson Space Center
- Provider reference code
- JSC Mars-1
- Local reference code
- JSC Mars-1
- Body name
- Earth
- Place
- Pu'u Nene cinder cone (2010m) on Mauna Kea's south flank, Hawaii, USA
- Preparation
- raw
- Method
- mineral mixture extracted by hand from 40 to 60cm thick zone after removing soil horizon to prevent contamination from the soil above and the unaltered glassy ash below
- Phase type
- solid
- Component type (group)
- mineral (silicate mineral), mineral (non-silicate mineral), igneous rock (volcaniclastic sedimentary rock or sediment)
- Shape
- loose powder
- Texture
- compact glassy
- Type of porosity
- open pores
- Porosity
- 0.545 $\pm$ 0.015
- Density
- 0.87 $\pm$ 0.02 $g.cm^{-3}$
- Texture
- compact mixed
- Grain compacity
- 0.455 $\pm$ 0.015
- Grain density
- 0.87 $\pm$ 0.02 $g.cm^{-3}$
- Grain sizes
-
Grains Size min Size max Size median Size width Size mass fraction Grain shape #1 0.0 ${\mu}m$ 5.0 ${\mu}m$ 0.01 None #2 5.0 ${\mu}m$ 52.0 ${\mu}m$ 0.05 None #3 53.0 ${\mu}m$ 149.0 ${\mu}m$ 0.19 None #4 150.0 ${\mu}m$ 249.0 ${\mu}m$ 0.24 None #5 250.0 ${\mu}m$ 449.0 ${\mu}m$ 0.3 None #6 450.0 ${\mu}m$ 1000.0 ${\mu}m$ 0.21 None - Size method
- Sieving and stokes settling techniques
- Comments
- Finely crystallized and glassy particles of "hawaiite" volcanic rock. The magnetic (unaltered) <149 pm particles are more dense (2.15 ± 0.09 g/cm3) than the nonmagnetic (altered) fraction in the same size range (1.76 ± 0.03 g/cm3)
- Oxides
-
Formula $SiO_{2}$ $Al_{2}O_{3}$ $TiO_{2}$ $Fe_{2}O_{3}$ $FeO$ $MnO$ $CaO$ $MgO$ $K_{2}O$ $Na_{2}O$ $P_{2}O_{5}$ Mass fraction (%) 43.75 22.72 3.66 12.12 3.57 0.27 5.97 3.69 0.73 2.31 0.79 - Oxides comments
- LOI: 18.08% (volatiles: $H_2O$ + $SO_2$?), Fe3+/Fe2+: 3.08 from Morris et al. 2000. Only sligthly different values in Allen et al. 1998