Name: Johannsenite Ca(Mn,Fe^2+)(SiO_3)_2
Type: Mineral
Class: Silicate
Subclass: Inosilicate
Particle Size: Coarse
Sample No.: IN-12A
Owner: JPL
Wavelength Range: VSWIR
Origin: USA, Arizona, Graham County, Aravaipa.
Collection Date: N/A
Description: Particle size was 125-500um.Collected by:  Burminco Original ASTER Spectral Library name was jpl.perkin.mineral.silicate.inosilicate.coarse.in12a.spectrum.txt
Mineral:  Johannsenite Ca(Mn,Fe^2+)(SiO_3)_2

File Name:  in12a.txt

XRD Analysis:  Johannsenite(A)

Chemical Analysis:
from electron microprobe (Na_0.01Ca_0.99)(Mn_0.48Fe_0.46Mg_0.05Al_0.01)Si_2O_6
