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: Epidote BR93-33a DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: BR93-33A

MINERAL_TYPE: Sorosilicate

MINERAL: Epidote (Epidote group)

FORMULA: Epidote = Ca2(Al,Fe+3)3(SiO4)3(OH)

FORMULA_HTML: Ca₂(Al,Fe⁺³)₃(SiO₄)₃(OH)

COLLECTION_LOCALITY: Southern part of the Rodman Mountains (near Radio Tower), Barstow, CA, USA

COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)

COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)

DATUM: Not Available # coordinate datum

ORIGINAL_DONOR: Eric Livo

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Epidote veinlets in biotite quartz monzonite rock.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Major: Epidote, Albite, and Quartz
Minor: none

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

No additional compositional details available.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

IMAGE_OF_SAMPLE: Not Available

SPECTROSCOPIC_DISCUSSION:

well formed Epidote spectrum (spectrally pure)

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:	splib05a r 2571	0.2-3.0µm	200	g.s.=

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U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/2003/ofr-03-395/DESCRIPT/M/epidote_br93-33a.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:30 EDT 2013