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 ± 0.015
- Density
- 0.87 ± 0.02 g.cm−3
- Texture
- compact mixed
- Grain compacity
- 0.455 ± 0.015
- Grain density
- 0.87 ± 0.02 g.cm−3
- Grain sizes
-
Grains Size min Size max Size median Size width Size mass fraction Grain shape #1 0.0 μm 5.0 μm 0.01 None #2 5.0 μm 52.0 μm 0.05 None #3 53.0 μm 149.0 μm 0.19 None #4 150.0 μm 249.0 μm 0.24 None #5 250.0 μm 449.0 μm 0.3 None #6 450.0 μm 1000.0 μm 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 SiO2 Al2O3 TiO2 Fe2O3 FeO MnO CaO MgO K2O Na2O P2O5 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: H2O + SO2?), Fe3+/Fe2+: 3.08 from Morris et al. 2000. Only sligthly different values in Allen et al. 1998