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 +
(Na0.5)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