Name: Dolomite CaMg(CO3)2
Type: Mineral
Class: Carbonate
Subclass: None
Particle Size: Solid
Sample No.: dolomite_1
Owner: JHU
Wavelength Range: TIR
Origin: Sample from Oberdorf, Styria, Austria via the Smithsonian(sample no. NMNH R12596).  
Collection Date: N/A
Description:  The sample was a single white crystal, 3 cm x 2 cm x 2 cm and 29 g, showing good cleavage.  No impurities or alteration were visible in hand sample.  Under the microscope it appears very pure and unaltered. Sample measured had cleavage face. Original ASTER Spectral Library name was jhu.nicolet.mineral.carbonate.none.solid.dolomi1.spectrum.txt
Mineral:  Dolomite CaMg(CO3)2

Sample No.: dolomite.1

XRD Analysis:  XRD shows small peaks at 9.4 and 3.11 angstroms,  
indicating the presence of a very small amount of talc (not seen in IR 
spectrum).

Chemistry:  Microprobe analysis of 6 grains showed homogeneous 
grain composition, a Ca/Mg ratio of 53.47/46.50, and only a trace of 
iron.  The analysis technique was not appropriate for CO3, but the 
cation abundances indicate a good dolomite.
