Clark and others 2007 USGS Data Series 231
Spectral Library splib06a Sample Description

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

TITLE: Dic.4+msc.3+gyp.2+jr.1 AMX20 DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: AMX20

MIXTURE_TYPE: Areal

MIXTURE: Dickite (Kaolinite-Serpentine group), Muscovite, Gypsum, Jarosite

FORMULA: Al2Si2O5(OH)4 + KAl2Si3O10(OH)2 + CaSO4*2H20 + K(Fe+3)3(SO4)2(OH)6

FORMULA_HTML: Al₂Si₂O₅(OH)₄ + CaSO₄•2H₂0 + KAl₂Si₃O₁₀(OH)₂
+ KFe⁺³₃(SO₄)₂(OH)₆

COLLECTION_LOCALITY: (Red Mountain, Colorado), (Brazil), (Washington County, Utah), (Synthetic)

ORIGINAL_DONOR: (National Museum of Natural History), (C.V. Clemency, SUNY), (Hunt and Salisbury Collection), (Synthetic)

CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Added 3/27/00 BWR. Areal mix of 20% gypsum (HS333), 10% K jarosite (GDS99), and 30% medium-high Al muscovite(GDS113), and 40% dickite (NMNH106242).

See: Dickite (NMNH106242), Muscovite (GDS113), Gypsum (HS333), K Jarosite (GDS99).

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

See: Dickite (NMNH106242), Muscovite (GDS113), Gypsum (HS333), K Jarosite (GDS99).

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

See: Dickite (NMNH106242), Muscovite (GDS113), Gypsum (HS333), K Jarosite (GDS99).

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

See: Dickite (NMNH106242), Muscovite (GDS113), Gypsum (HS333), K Jarosite (GDS99).

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

See: Dickite (NMNH106242), Muscovite (GDS113), Gypsum (HS333), K Jarosite (GDS99).

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:	splib05a r 8016	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib06a r 24965			g.s.=