Calcite

Spectrum Details

Modality

FTIR

Category

mineral

Material Type

Carbonate

Sample ID

WS272

Collection Locality

Tunguska, Siberia, USSR

Spectral Purity

1a2a3a4a # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

None # XRF, EPMA, ICP(Trace), WChem

Sample Description

Forms series with Rhodochrosite. Trimorphous with Aragonite and Vaterite. This sample was ground from a beautiful single crystal of type Iceland Spar. The single crystal appeared pure, and the visible-NIR spectrum appears pure. See Clark, R.N., T.V.V. King, M. Klejwa, G. Swayze, and N. Vergo, 1990, High spectral resolution reflectance spectroscopy of minerals: J. Geophys Res. 12653-12680. IMAGE_OF_SAMPLE:

XRD Analysis

Calcite + small amount of "other" -- by Norma Vergo However, there is no "other" apparent in the single crystals or the ground sample. -- Roger N. Clark

X Units

cm⁻¹

Y Units

Absorbance

Data Points

1,801