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: Phlogopite WS675 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: WS675

MINERAL_TYPE: Phyllosilicate

MINERAL: Phlogopite (Mica group)

FORMULA: KMg3Si3AlO10(F,OH)2

FORMULA_HTML: KMg₃Si₃AlO₁₀(F,OH)₂

COLLECTION_LOCALITY: Bancroft, Ontario, Cananda

ORIGINAL_DONOR: Ward Science Collection

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Forms series with Biotite.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

40 kV - 30 mA, 7.0-9.5 keV
File: plogo675.out, -.mdi (edge = random mount)
References: Huebner's reference patterns, particularly of a phlogopite crystal from Burgess, Ontario; SWBailey (1988, MSA Reviews 13)

Comment: Only moderately well crystallized (compare with WS-496). Position of the (3T 30-30) or (1M 060) reflection at 1.535 angstroms consistent with phlogopite (Mg=100). Three unindexed reflections at 1.64, 1.61. and 1.58 angstroms also appear in the reference pattern and in WS-496.

J.S. Huebner, J. Pickrell, T. Schaefer, written communication(USGS)

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: 1a2_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 3895	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 5425	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/phlogopite_ws675.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:33 EST 2013