DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: CU93-1
MINERAL_TYPE: Phyllosilicate
MINERAL: Muscovite (Mica group)
FORMULA: KAl2Si3O10(OH)2
FORMULA_HTML: KAl2Si3O10(OH)2
COLLECTION_LOCALITY: Cuprite Nevada
ORIGINAL_DONOR: G.Swayze
CURRENT_SAMPLE_LOCATION: U.S.G.S. Spectroscopy Laboratory.
ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Spectroscopy Laboratory.
SAMPLE_DESCRIPTION:
Unaltered metamorphic phyllite from the lower Cambrian Harkless formation. Sample has quartz.
IMAGE_OF_SAMPLE:
NO PHOTO
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Not Available
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: NONE # XRF, EPMA, ICP(Trace),WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
None
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
Spectrum has absorptions characteristic of muscovite.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1_2b3_4_ # CU93-1 # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns