DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: BR93-34B2
MINERAL_TYPE: Oxide
MINERAL: Nanohematite
FORMULA: Fe2O3
FORMULA_HTML: Fe2O3
COLLECTION_LOCALITY: Rodman Mountains, California
ORIGINAL_DONOR: Livo
CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
SAMPLE_DESCRIPTION:
Hematite on quartzite, muscovite, kaolinite.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
quartz(major), muscovite(minor), orthoclase(minor), albite(minor).
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: NONE # XRF, EPMA, ICP(Trace),WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
Classic hematite spectrum with strong iron absorptions at 0.55 and 0.88 microns - with a slight shoulder at 0.66. The spectrum has a well formed muscovite feature with absorptions at 2.21, 2.35, and 2.45 microns.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2_3_4_ # BR93-34B2 # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns