DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: GDS7
MINERAL_TYPE: Tectosilicate
MINERAL: Scolecite (Zeolite group)
FORMULA: CaAl2Si3O10*3H2O
FORMULA_HTML: CaAl2Si3O10•3H2O
COLLECTION_LOCALITY: Narayngaon, India
ORIGINAL_DONOR: Wards Scientific
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
The sample appears white and to be spectrally pure.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Scolecite - major component, probably mixed with other natrolite-type zeolites. Other components in small amounts, possibly including gibbsite, akermanite.
Konnert, Judith and Marta Flohr, 1992, unpublished data, USGS Reston, VA.
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EPMA, ICP(Trace), WChem
COMPOSITION_TRACE:
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2b3b4_ # GDS7 # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns