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DOCUMENTATION_FORMAT: Man_Made
SAMPLE_ID: GDS353
MATERIAL_TYPE: Brick
MATERIAL: Brick
FORMULA: Unknown
FORMULA_HTML: Unknown
COLLECTION_LOCALITY: Denver, Colorado
ORIGINAL_DONOR: Gregg Swayze
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Lab
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Lab
SAMPLE_DESCRIPTION:
This is a medium red colored brick normally used to build walls. It is a portion of a brick that had original approximate dimensions of 19 x 9 x 5.5 cm.
IMAGE_OF_SAMPLE:
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
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 strong absorption edge centered about 0.58 microns gives this brick its medium red color. An absorption at 0.89 microns suggest hematite is the main pigment. Absorptions at 1.4 microns and between 2.2 and 2.3 microns suggest the presence of OH bearing phases. G. Swayze.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns