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Coarse-grained-ultramafic-rock

A rock classification type
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03902680017271952819060.jpg
Lherzolite

Peridot Mesa, San Carlos, Gila County, Arizona, USA
04769240017272472737129.jpg
Dunite, etc.

Gusdal Olivine Pit, Almklovdalen, Vanylven, Møre og Romsdal, Norway
06114500017272022117372.jpg
Dunite, etc.

Dun Mountain, Nelson Region, New Zealand
03902680017271952819060.jpg
Lherzolite

Peridot Mesa, San Carlos, Gila County, Arizona, USA
04769240017272472737129.jpg
Dunite, etc.

Gusdal Olivine Pit, Almklovdalen, Vanylven, Møre og Romsdal, Norway
06114500017272022117372.jpg
Dunite, etc.

Dun Mountain, Nelson Region, New Zealand
00021350017271952866833.jpg
Lherzolite

Peridot Mesa, San Carlos, Gila County, Arizona, USA
04769240017272472737129.jpg
Dunite, etc.

Gusdal Olivine Pit, Almklovdalen, Vanylven, Møre og Romsdal, Norway
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About Coarse-grained-ultramafic-rockHide

A coarse-grained crystalline igneous rock composed mostly (>90%) of mafic minerals


Unique IdentifiersHide

Mindat ID:
50598
Long-form identifier:
mindat:1:1:50598:1

Classification of Coarse-grained-ultramafic-rockHide

TRI__45d62b89f1bfbd3bd8fb5e59c28ae239.png

Modal classification of ultramafic rocks (after Streckeisen, 1973)

TRI__a85a3952c86a41ec3c142287771f1356.png

Modal classification of ultramafic rocks (after Streckeisen, 1973)

Sub-divisions of Coarse-grained-ultramafic-rockHide

Mineralogy of Coarse-grained-ultramafic-rockHide

Essential minerals - these are minerals that are required within the classification of this rock:
Mafic mineralsA petrological term for dark, rock-forming minerals rich in magnesium and/or iron.
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
OlivineM2SiO4
PyroxeneADSi2O6

Age distributionHide

Recorded ages:
Neoproterozoic to Quaternary : 773 ± 18 Ma to 2.588 Ma - based on 14 recorded ages.

Synonyms of Coarse-grained-ultramafic-rockHide

Internet Links for Coarse-grained-ultramafic-rockHide

References for Coarse-grained-ultramafic-rockHide

Reference List:
Quick NavTopAbout Coarse-grained-ultramafic-rockUnique IdentifiersClassification Sub-divisions Mineralogy Age distributionSynonymsInternet Links References
 
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