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        <logical_identifier>urn:nasa:pds:libs_reference_database:data_plibs_z903:plibs_z903_mix302</logical_identifier>
        <version_id>1.0</version_id>
        <title>pLIBS Reference Spectra: MIX302 Location 1</title>
        <information_model_version>1.17.0.0</information_model_version>
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        <Modification_History>
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                <description>Initial version.</description>
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        <Time_Coordinates>
            <start_date_time>2021-12-13Z</start_date_time>
            <stop_date_time>2021-12-13Z</stop_date_time>
        </Time_Coordinates>
        <Primary_Result_Summary>
            <purpose>Science</purpose>
            <processing_level>Partially Processed</processing_level>
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        <Investigation_Area>
            <name>Acquisition of a Multi-Parameter LIBS Reference Database of Geological Materials</name>
            <type>Individual Investigation</type>
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                    <speclib:specimen_type>Synthetic Sample</speclib:specimen_type>  
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                    <speclib:material_subtype>Particulate</speclib:material_subtype>
                    <speclib:material_subtype>Pressed Powder Pellet</speclib:material_subtype>
                    <speclib:rock_type>Unknown</speclib:rock_type>
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                    <speclib:spectral_range_max>960</speclib:spectral_range_max>
                    <speclib:spectral_range_unit_name>nm</speclib:spectral_range_unit_name>
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                    <speclib:measurement_reference_standard>MIX302</speclib:measurement_reference_standard>
                    <speclib:measurement_source_description>laser</speclib:measurement_source_description>
                    <speclib:measurement_atmosphere_pressure unit="Pa">101325</speclib:measurement_atmosphere_pressure>
                    <speclib:measurement_atmosphere_composition>78% N2, 20.9% O2, 0.9% Ar, 0.04% CO2</speclib:measurement_atmosphere_composition>
                    <speclib:measurement_atmosphere_description>earth</speclib:measurement_atmosphere_description>
                    <speclib:measurement_date_time>2021-12-13Z</speclib:measurement_date_time>                    
                    <speclib:data_producer_name>The Mineral Spectroscopy Laboratory at Mount Holyoke College</speclib:data_producer_name>
                    <speclib:data_provider_name>K. Lepore</speclib:data_provider_name>
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                    <speclib:laser_wavelength unit="nm">1064</speclib:laser_wavelength>
                    <speclib:laser_averaged_integrations>12</speclib:laser_averaged_integrations>                    
                    <speclib:dark_subtraction_flag>N</speclib:dark_subtraction_flag>
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