Name: Andalusite Al2SiO5
Type: Mineral
Class: Silicate
Subclass: Nesosilicate
Particle Size: solid
Sample No.: andalusite_1
Owner: JHU
Wavelength Range: TIR
Origin: Sample from St. Theresa, Espirito Santo, Brazil via Smithsonian(sample no. NMNH R17898). 
Collection Date: N/A
Description:  Sample was composed of two crystals, one clear and one pale pink. Both appeared pure, both 1 cm x 1 cm x 5 cm. Examination under a petrographic microscope indicated pure and clean samples. Sample grains chosen for microprobe analysis were clear, but with poor polish in part.(Isolated tetrahedra) (Al2SiO5 Group) Original ASTER Spectral Library name was jhu.nicolet.mineral.silicate.nesosilicate.solid.andalu1.spectrum.txt
Mineral:  Andalusite Al2SiO5

Sample No.: andalus.1

XRD Analysis:  Pure andalusite.

Chemistry:  Microprobe analysis showed the sample to be 
homogeneous within and between grains.  An average of 10 analyses, 
indicating close to end member composition, is:

SiO2 	37.19
Al2O3	63.62
FeO 	0.26
MgO	0.06
CaO 	0.02
K2O	0.01
Na2O	0.02
TiO2	0.03
MnO 	0.01
	_____
Total 	101.22
