urn:nasa:pds:msl_chemin_derived:data_chemin_min:cmb_528182076min14720580642ch00113p2 1.0 1.19.0.0 Product_Observational 2025-05-25 1.0 Initial PDS4 version of this product. 2016-09-26T17:37:15.312Z Science Derived Data from the MSL CheMin Instrument. MARS SCIENCE LABORATORY Mission urn:nasa:pds:context:investigation:mission.mars_science_laboratory data_to_investigation MARS SCIENCE LABORATORY MARS SCIENCE LABORATORY Host urn:nasa:pds:context:instrument_host:spacecraft.msl is_instrument_host CHEMISTRY AND MINERALOGY INSTRUMENT Instrument urn:nasa:pds:context:instrument:chemin.msl is_instrument MARS Planet urn:nasa:pds:context:target:planet.mars data_to_target 0039 CHEMIN_MIN PRIMARY SURFACE MISSION V1.0 528182076.426 1472 urn:nasa:pds:msl_chemin_derived:document:chemin_rdr_sis data_to_document urn:nasa:pds:msl_chemin_derived:document:chemin_pds4_notes data_to_document urn:nasa:pds:msl_chemin_derived:data_chemin_rda:cmb_528182076rda14720580642ch00113p1::1.0 data_to_derived_source_product cmb_528182076min14720580642ch00113p2.csv 2025-05-25T18:16:15

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23 PDS DSV 1 This table contains mineral abundances and analytical errors derived from diffraction-all K-alpha diffraction data for the Quela drill sample, analyzed in CheMin cell number 5a (Kapton window). This is a P2 revision of the original MIN file that was created on 2017-02-14T21:36:30. The P2 reanalysis recognizes that olivine is not present in Quela, based on absence of the strongest olivine diffraction peak. The P2 analysis also recognizes that a small amount of halite is present in the sample. The analysis is based on RDA file CMB_528182076RDA14720580642CH00113P1. That RDA file is from the first night of analysis, sol 1470-1471. Additional analyses of Quela were obtained on subsequent nights, but warm temperatures inside CheMin (up to ~30 degrees centigrade, with correspondingly low relative humidity) caused conversion of gypsum to bassanite over time. Therefore these later analyses do not represent in situ mineralogy and are not used to determine the RDA diffraction pattern and MIN composition of the in situ sample. For comparison, the full RDA file for all four nights of analysis, which is not used to prepare a MIN file, is CMB_528182076RDA14720580642CH00113P2. Mineral identifications, abundances and analytical errors for crystalline phases, other than clay minerals, were determined using the program JADE. Orthorhombic and monoclinic pyroxenes both appear to be present, with orthopyroxene predominant, but exact identification of individual pyroxenes is hampered by small abundances and only the percentage of total pyroxene is reported. In addition to the crystalline phases, the abundance of clay minerals was modeled using the program FULLPAT at ~16 +/- 8 weight% of the total sample. A broad rise in background is present and has been modeled using FULLPAT to indicate that ~52 +/- 26 weight% of the total sample consists of X-ray amorphous material. Errors quoted are 2-sigma. Column 1 of the table lists mineral identifications, column 2 lists the mineral abundances in weight percent. Errors shown in column 3 are 2-sigma and include the combined instrumental error plus analytical error estimated from five separate JADE analyses by members of the CheMin team. 10 Carriage-Return Line-Feed Comma 3 0 MINERAL 1 ASCII_String 16 Mineral identification PERCENT 2 ASCII_Real 9 weight_percent The mineral abundances in weight percent ERROR 3 ASCII_Real 7 estimated_error The estimated 2-sigma analytical errors cmb_528182076min14720580642ch00113p2.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed