Clark et. al. 2003 USGS Open File Report 03-395
Spectral Library splib05a Sample Description

(For further information on spectrsocopy, see: http://speclab.cr.usgs.gov)

TITLE: Orthoclase NMNH142137 Fe DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: NMNH142137

MINERAL_TYPE: Tectosilicate

MINERAL: Orthoclase (Ferrian) (Feldspar group)

FORMULA: KAlSi3O8

FORMULA_HTML: KAlSi₃O₈

COLLECTION_LOCALITY: Unknown

ORIGINAL_DONOR: National Museum of Natural History

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Forms series with celsian. Dimorphous with Microcline. Ferrian orthoclase.

Sieve interval 0 - 74µm.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Contains orthoclase plus small amount of anorthite. No oligoclase seen. (Norma Vergo)

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem

COMPOSITION_TRACE:

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

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 3775	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 5302	0.2-3.0µm	200	g.s.=

AccessibilityFOIAPrivacyPolicies and Notices
U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/2003/ofr-03-395/DESCRIPT/M/orthoclase_nmnh142137.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:33 EST 2013