Name: Hornblende Ca2(Fe+2,Mg)4Al(Si7Al)O22(OH,F)2
Type: Mineral
Class: Silicate
Subclass: Inosilicate
Particle Size: Fine
Sample No.: hornblen_1
Owner: JHU
Wavelength Range: TIR
Origin: Gore Mountain, New York via Hunt and Salisbury Collection,#177B (Purchased from Ward's Natural Science Establishment)
Collection Date: N/A
Description:  The specimen was a cluster of very dark green single crystals half a centimeter to one centimeter in length and almost as wide.(Amphibole Group)Particle size was Less than 2 micrometers. Original ASTER Spectral Library name was jhu.nicolet.mineral.silicate.inosilicate.powder.hornbl1.spectrum.txt
Mineral:  Hornblende Ca2(Fe+2,Mg)4Al(Si7Al)O22(OH,F)2

Sample No.: hornblen.1

XRD Analyis:  Hornblende plus trace of unidentifiable mineral.

Chemistry:  Microprobe analysis showed the sample to be 
homogeneous within and between grains and with a composition 
typical of ferrohornblende.  Average of 10 analyses:

SiO2	41.50
Al203	12.97
FeO	15.43
MgO	11.49
CaO	11.34
K2O	1.71
Na2O	1.61
TiO2	2.89
MnO	0.13
	_____
Total	*99.08
	*OH and F not measured.
