Name: Albite NaAlSi3O8
Type: Mineral
Class: Silicate
Subclass: Tectosilicate
Particle Size: Fine
Sample No.: albite_1
Owner: JHU
Wavelength Range: TIR
Origin: Sample from Rutherford, Virginia, USA via the Smithsonian(sample no. NMNHC5390) and Bruce Hemingway.
Collection Date: N/A
Description: The sample was a large (2 cm x 2 cm x 2 cm) fragment of a twinned crystal.  The sample appeared very fresh.  It was translucent and light gray to white in color.  This is a sample of the classic Amelia albite. Particle size was less than 2 Micrometers.(Framework silicates) (Feldspar Group) Original ASTER Spectral Library name was jhu.nicolet.mineral.silicate.tectosilicate.powder.albite1.spectrum.txt
Mineral:  Albite NaAlSi3O8

File Name:  Albite1a.txt

XRD Analysis:  Pure albite.

Chemistry: Flame photometry and atomic absorption analysis of 
samples from the same location (not the same sample) showed 98.42 
mole percent albite. 

Microprobe analysis of this sample showed it to be homogeneous 
within and between grains.  An average of 10 analyses indicates 
pure albite end member composition:

SiO2 	 68.18
Al2O3	 20.07
FeO 	 0.01
MgO	 0.02
CaO 	 0.02
K2O	 0.20
Na2O	 10.37
TiO2	 0.01
MnO 	 0.01
	_____
Total 	99.88
