DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: GDS135
MINERAL_TYPE: Phyllosilicate
MINERAL: Sauconite (Montmorillonite group)
FORMULA: Na0.33Zn3(Si,Al)4O10(OH)2*4H2O
FORMULA_HTML: Na0.33Zn3(Si,Al)4O10(OH)2•4H2O
COLLECTION_LOCALITY: Coon Hollow Mine, Zinc, Boone Co. Arkansas
ORIGINAL_DONOR: Dave Sherman
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Sample is sauconite and the presence of zinc was confirmed with portable XRF. B. Benzel.
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EPMA, ICP(Trace), WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2b3b4u # GDS135 # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns