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Microdiorite

A rock subtype
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03784640017272433544424.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
00972520017272433555857.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
00970650017272096869963.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
00972520017272433555857.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
00970650017272096869963.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
00972520017272433555857.jpg
Microdiorite

Treidling quarry, Nittenau, Schwandorf District, Upper Palatinate, Bavaria, Germany
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About MicrodioriteHide

A diorite with a grainsize of 1-5mm.


Unique IdentifiersHide

Mindat ID:
48231
Long-form identifier:
mindat:1:1:48231:6

Classification of MicrodioriteHide

QAPF_P_10.png

Diorite is in section 10 of the QAPF diagram.

Sub-divisions of MicrodioriteHide

Mineralogy of MicrodioriteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Pronunciation of MicrodioriteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Chemical AnalysisHide

Oxide wt%:
 12
SiO245.95 %41.61 %
Al2O316.47 %13.09 %
TiO23.38 %4.39 %
Fe2O32.00 %2.00 %
FeO8.69 %12.73 %
MgO4.05 %6.44 %
MnO0.22 %0.19 %
Na2O5.1 %3.89 %
CaO10.17 %11.59 %
K2O2.4 %2.1 %
P2O50.6 %0.56 %
Total:99.03 %98.59 %
Sample references:
IDLocalityReferenceNotes
1Mont Royal, Montréal, Québec, Canada
Woussen, Gerard (1970) La geologie du complexe igne du Mont Royal [The geology of the Mount Royal igneous complex]. The Canadian Mineralogist, 10 (3). p.432-451.
Wet chemical analysis by G. Woussen and B.M.Gunn. The Fe2O3 percentage is arbitrarily set to 2%.
2  "  "
Woussen, Gerard (1970) La geologie du complexe igne du Mont Royal [The geology of the Mount Royal igneous complex]. The Canadian Mineralogist, 10 (3). p.432-451.
Wet chemical analysis by G. Woussen and B.M.Gunn. The Fe2O3 percentage is arbitrarily set to 2%.

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Microdiorite associated with QuartzSiO2
1 photo of Microdiorite associated with AlbiteNa(AlSi3O8)
1 photo of Microdiorite associated with Chlorite Group
1 photo of Microdiorite associated with 'Porphyry'

Internet Links for MicrodioriteHide

References for MicrodioriteHide

Reference List:
Quick NavTopAbout MicrodioriteUnique IdentifiersClassification Sub-divisions Mineralogy Pronunciation Chemical AnalysisCommon AssociatesInternet Links References
 
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