Vermiculite VTx-1.a lt250um — NIR2,126 points · 4000–12500 cm⁻¹
Sample photograph — USGS Spectral Library v7
Spectrum Details
- Modality
- NIR
- Category
- mineral
- Material Type
- Phyllosilicate
- Sample ID
- VTx-1.a
- Collection Locality
- Llano, Texas
- Spectral Purity
- 1b2_3_4_ # VTx-1.a # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns
- Composition / XRD
- XRF # XRF, EPMA, ICP(Trace), WChem
- Sample Description
- less than 250 microns. IMAGE_OF_SAMPLE:
- XRD Analysis
- Not vermiculite - not pure (Norma Vergo). Spectrally pure, but not chemically pure. (Norma Vergo). There is some confusion on whether this is a pure vermiculite.
- X Units
- cm⁻¹
- Y Units
- Absorbance
- Data Points
- 2,126
Download
Attribution
USGS Spectral Library Version 7, U.S. Geological Survey
License: Public Domain
DOI: 10.3133/ds1035Analyze in Workbench
Open this spectrum in the SpectralBench workbench for advanced analysis, peak detection, and comparison.
Open Workbench