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JEOL-8600 microprobe database (CU Boulder) | Print date: 08/07/2020 (16:53)

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Standard - Information

In use PG721 (Labradorite) Block: B
First entry: 10/08/2012 by Julien Allaz
Mineral class
Sub-class
Group
silicate
Feldspar
Plagioclase
Synthetic? no
Formula
Standard element(s)
(Ca,Na)(Si,Al)4O8
Ca Na Al Si
Source / reference UMass geochemical analysis facility
Origin, rock type... Kiglapait Labrador
General comment Standard given by M.J. Jercinovic (UMass, Amherst)

Analysis 1
Analysis type unknown
Wt-% oxideWt-% elementAtom [p.f.u.]
54.860
0.040
28.520
0.310
0.050
11.090
4.950
0.450
SiO2
TiO2
Al2O3
FeO
MgO
CaO
Na2O
K2O
25.643
0.024
15.094
0.241
0.030
7.926
3.672
0.374
47.266
Si
Ti
Al
Fe2+
Mg
Ca
Na
K
O
2.473
0.001
1.515
0.012
0.003
0.536
0.433
0.026
8.000
100.270100.27012.999

BSE image of PG721 (Block B).



EDS spectrum in PG721 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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