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(For further information on spectrsocopy, see:
http://speclab.cr.usgs.gov)
TITLE: Marialite NMNH126018-2 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: NMNH126018-2
MINERAL_TYPE: Tectosilicate
MINERAL: Marialite (Scapolite group)
FORMULA: Na4Al3Si9O24(Cl,OH)/Ca4Al6Si6O24(CO3,SO4)
FORMULA_HTML: Na4Al3Si9O24(Cl,OH)/Ca4Al6Si6O24(CO3,SO4)
COLLECTION_LOCALITY: Goodenham, Haliburton Co., Ontario, Canada
ORIGINAL_DONOR: National Museum of Natural History
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
Scapolites are metamorphic minerals with compositions similar to feldspars. Marialite is an end member of the solid solution series marialite-meionite.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Scapolite + laumontite + other(s). (Norma Vergo)
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: EM # XRF, EM(WDS), ICP(Trace), WChem
| COMPOSITION KEYWORD |
Oxide ASCII |
Amount | Weight Percent, % |
Oxide html |
|---|---|---|---|---|
| COMPOSITION: | SiO2 | 59.8800 | wt% | SiO2 |
| COMPOSITION: | TiO2 | 0.0010 | wt% | TiO2 |
| COMPOSITION: | Al2O3 | 20.5900 | wt% | Al2O3 |
| COMPOSITION: | FeO | 0.0040 | wt% | FeO |
| COMPOSITION: | MnO | 0.0090 | wt% | MnO |
| COMPOSITION: | CaO | 3.8780 | wt% | CaO |
| COMPOSITION: | Na2O | 10.8700 | wt% | Na2O |
| COMPOSITION: | K2O | 1.3210 | wt% | K2O |
| COMPOSITION: | Cl | 3.5390 | wt% | Cl |
| COMPOSITION: | F | 0.0480 | wt% | F |
| COMPOSITION: | CO2 | 1.2200 | wt% | CO2 |
| COMPOSITION: | Total | 101.362 | wt% | |
| COMPOSITION: | O=Cl,F,S | 0.819 | wt% | #correction for Cl, F, S |
| COMPOSITION: | New Total | 100.55 | wt% |
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
XMe = Ca/(Ca+Na) = 16 Me
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
Heavy liquid separation removed laumonite.
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns
| LIB_SPECTRA_HED: | where | Wave Range | Av_Rs_Pwr | Comment |
|---|---|---|---|---|
| LIB_SPECTRA: | splib04a r 2916 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib05a r 4291 | 0.2-3.0µm | 200 | g.s.= |
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