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: Palygorskite PFL-1 Attapulgite DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: PFL-1

MINERAL_TYPE: Phyllosilicate

MINERAL: Palygorskite (Attapulgite)

FORMULA: (Mg,Al)2Si4O10(OH)*4H2O

FORMULA_HTML: (Mg,Al)₂Si₄O₁₀(OH)•4H₂O

COLLECTION_LOCALITY: Florida

ORIGINAL_DONOR: Clay Mineral Society

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Palygorskite plus quartz (G. Swayze and Ken Esposito, 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: 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 3808	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 5326	0.2-3.0µm	200	g.s.=

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