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JEOL-8600 microprobe database (CU Boulder) | Print date: 09/22/2021 (01:38)

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Standard - Information

In use Chromite (Chromite) Block: #8
First entry: 04/15/2012 || Last update: 11/02/2012 by Julien Allaz
Mineral class
Sub-class
Group
chromate
Spinel
Chromite
Synthetic? no
Formula
Standard element(s)
(Fe,Mg)Cr2O4
Fe Mg Cr
Source / reference USNM #117075
Origin, rock type... Tiebaghi Mine, New Caledonia
General comment See Jarosewich et al. (1980), Geostandards Newsletter 4 (2), p. 257

Analysis 1
Analysis type unknown
Wt-% oxideWt-% elementAtom [p.f.u.]
9.920
60.500
13.040
15.200
0.110
0.120
Al2O3
Cr2O3
FeO
MgO
MnO
CaO
5.250
41.394
10.136
9.166
0.085
0.086
32.772
Al
Cr
Fe2+
Mg
Mn
Ca
O
0.380
1.555
0.354
0.736
0.003
0.004
4.000
98.89098.8897.032

BSE image of Chromite (Block B).



EDS spectrum in Chromite at 15 kV.


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