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
