DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: HS197.3B
MINERAL_TYPE: Phyllosilicate
MINERAL: Chlorite
FORMULA: (Mg,Fe)3(Si,Al)4O10(OH)2-(Mg,Fe)3(OH)6
FORMULA_HTML: (MgFe)3(SiAl)4O10(OH)2-(MgFe)3(OH)6
COLLECTION_LOCALITY: Calaveras County, Calif.
ORIGINAL_DONOR: Hunt and Salisbury
CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
SAMPLE_DESCRIPTION:
IMAGE_OF_SAMPLE:
NO PHOTO
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Sample is chlorite with no impurities observed in the XRD scan. B. Benzel.
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: The presence of a strong H2O combination band near 2 microns suggest the presence of a water-bearing phase. Hence the "b" purity rating. G. Swayze.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2b3b4b # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns