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JEOL-8600 microprobe database (CU Boulder) | Print date: 09/22/2021 (01:21)

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Standard - Information

In use Norbergite (Norbergite) Block: A, Bence-Albee, #7
First entry: 04/16/2012 by Julien Allaz
Mineral class
Sub-class
Group
silicate
Nesosilicate
Humite
Synthetic? no
Formula
Standard element(s)
Mg3(SiO4)(F,OH)2
Si Mg F
Source / reference ?
Origin, rock type... Franklin, NJ

Analysis 1
Reference Todd Solberg from VPI
Method Microprobe analysis
Analysis type average
Wt-% oxideWt-% elementAtom [p.f.u.]
28.960
0.580
0.730
60.910
0.050
14.380
2.193
-6.055
SiO2
TiO2
FeO
MgO
CaO
F
H2O
O=F,Cl
13.537
0.348
0.567
36.731
0.036
14.380
0.245
-6.055
41.959
Si
Ti
Fe2+
Mg
Ca
F
H
O=F,Cl
O
0.964
0.015
0.020
3.022
0.002
1.513
0.487
-
6.000
101.748101.74812.023

BSE image of norbergite (block BA). Notice the darker and lighter inclusion.



EDS spectrum in norbergite at 15 kV.



EDS spectrum in inclusion (gray in BSE, pyroxene?) inside norbergite at 15 kV.



EDS spectrum in inclusion (lighter in BSE, iron oxide) inside norbergite at 15 kV.


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Webmaster (Julien Allaz): julien.allaz@colorado.edu | Lab manager (Julien Allaz, Kevin Mahan): julien.allaz@colorado.edu

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