Olivine pyroxenite
A rock classification type
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About Olivine pyroxenite
Unique Identifiers
Mindat ID:
48421
Long-form identifier:
mindat:1:1:48421:7
Classification of Olivine pyroxenite

Modal classification of ultramafic rocks (after Streckeisen, 1973)

Modal classification of ultramafic rocks (after Streckeisen, 1973)
Sub-divisions of Olivine pyroxenite
Mineralogy of Olivine pyroxenite
Essential minerals - these are minerals that are required within the classification of this rock:
| Olivine Group | M2SiO4 |
| Pyroxene | A petrological term for Pyroxene Group. |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Amphibole > Hornblende | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| SiO2 | 41.4 % |
| Al2O3 | 8.06 % |
| TiO2 | 2.69 % |
| Fe2O3 | 2.00 % |
| FeO | 12.67 % |
| MgO | 15.32 % |
| MnO | 0.18 % |
| Na2O | 0.88 % |
| CaO | 14.98 % |
| K2O | 0.33 % |
| P2O5 | 0.08 % |
| Total: | 98.59 % |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Mont Royal, Montréal, Québec, Canada | Wet chemical analysis by G. Woussen and B.M.Gunn. The Fe2O3 percentage is arbitrarily set to 2%. |
Synonyms of Olivine pyroxenite
Internet Links for Olivine pyroxenite
mindat.org URL:
https://www.mindat.org/min-48421.html
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Lochinver, North, West and Central Sutherland, Highland, Scotland, UK