Sample Description USGS Spectral Library Version 7

USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
_{For more information on the library, see:
local link
web link}

TITLE: Calc.25+dolo.25+mont.5 AMX18 DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: AMX18

MIXTURE_TYPE: Areal

MIXTURE: Calcite, Dolomite, Montmorillonite

FORMULA: CaCO3 + CaMg(CO3)2 +(Na)0.33(Al,Mg)2[(SiAl)4O10(OH)2]·nH2O

FORMULA_HTML: CaCO₃ + CaMg(CO₃)₂ +
(Na_0.5)_0.33(Al,Mg)₂[(SiAl)₄O₁₀(OH)₂•nH₂O +

COLLECTION_LOCALITY: (Tunguska, Siberia, USSR), (Lee, Massachusetts), (Crook, Wyoming).

ORIGINAL_DONOR: (Wards Scientific), (Hunt & Salisbury Collection), (Clay Mineral Society).

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

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

SAMPLE_DESCRIPTION:

Calcite25% dolomite25% mont 50% ...(Ca mont)

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

See: Calcite (WS272), Dolomite (HS102.3B), Montmorillonite (SWy-1).

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: none # XRF, EPMA, ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

See WS272, HS102.3B, SWy-1.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

See WS272, HS102.3B, SWy-1.

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

See WS272, HS102.3B, SWy-1.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1b2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns