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Coarse-grained ("plutonic") crystalline igneous rock

A rock classification type
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00529070017272472717005.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
03285540017271952979236.jpg
Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal
07629450017271952974868.jpg
Larvikite

Almenningen Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
03210290017272473434319.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
03285540017271952979236.jpg
Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal
07629450017271952974868.jpg
Larvikite

Almenningen Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
00529070017272472717005.jpg
Pegmatitic peralkaline syenite, etc.

Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway
03285540017271952979236.jpg
Granite

D. João quarry, Monforte, Monforte, Portalegre, Portugal
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About Coarse-grained ("plutonic") crystalline igneous rockHide

QAPF_P_.png

Rocks in section 1 of the QAPF diagram.


Coarse-grained crystalline normal igneous rock. Coarse grained usually means >2mm, easily visible to the naked eye. In many classification systems these are termed "plutonic" and are usually intrusive.
1 Quartz-Rich-Granitic-Rock
1a Quartzolite
2 Alkali-Feldspar-Granite
3 Granite (3a: Syenogranite - 3b: Monzogranite)
4 Granodiorite
5 Tonalite
6 Alkali-Feldspar-Syenite
6* Quartz-Alkali-Feldspar-Syenite
6' Foid-Bearing-Alkali-Feldspar-Syenite
7 Syenite
7* Quartz-syenite
7' Foid-Bearing-Syenite
8 Monzonite
8* Quartz-monzonite
8' Foid-monzonite
9 Monzodiorite / Monzogabbro
9* Quartz-monzodiorite / Quartz-monzogabbro
9' Foid-Monzodiorite / Foid-Monzogabbro
10 Diorite / Gabbro / Anorthosite
10* Quartz-Diorite / Quartz-Gabbro
10' Foid-Bearing-Diorite / Foid-Bearing-Gabbro
11 Foid-Syenite (Foyaite)
12 Foid-Monzosyenite
13 Foid-Monzodiorite (Essexite)
14 Foid-Diorite
15 Foidolite

Field 3 is sometimes subdivided into fields 3a and 3b, which correspond to syenogranite and monzogranite, but usually both are treated as one field for granite.


Unique IdentifiersHide

Mindat ID:
48121
Long-form identifier:
mindat:1:1:48121:0

Classification of Coarse-grained ("plutonic") crystalline igneous rockHide

The QAPF diagram
breaks coarse-grained crystalline igneous rocks down into 15 groups according to the IUGS recommendations for igneous rock classification.


Sub-divisions of Coarse-grained ("plutonic") crystalline igneous rockHide

Synonyms of Coarse-grained ("plutonic") crystalline igneous rockHide

Internet Links for Coarse-grained ("plutonic") crystalline igneous rockHide

References for Coarse-grained ("plutonic") crystalline igneous rockHide

Quick NavTopAbout Coarse-grained ("plutonic") crystalline igneous rockUnique IdentifiersClassification Sub-divisions SynonymsInternet Links References
 
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