Harzburgite
A rock classification type
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About Harzburgite
A peridotite containing >40% olivine, <10% felsic minerals, <5% clinopyroxene, <5% hornblende, >5% orthopyroxene and <5% clinopyroxene.
A variety of peridotite that consists essentially of olivine and orthopyroxene (enstatite).
A variety of peridotite that consists essentially of olivine and orthopyroxene (enstatite).
Unique Identifiers
Mindat ID:
48415
Long-form identifier:
mindat:1:1:48415:6
Classification of Harzburgite
Modal classification of ultramafic rocks (after Streckeisen, 1973)
Sub-divisions of Harzburgite
Mineralogy of Harzburgite
Essential minerals - these are minerals that are required within the classification of this rock:
| Olivine Group | M2SiO4 |
| Pyroxene > Orthopyroxene | A petrological term for Orthopyroxene Subgroup. |
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 |
| Chromite | Fe2+Cr3+2O4 |
| Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Pyroxene > Clinopyroxene | A petrological term for Clinopyroxene Subgroup. |
Synonyms of Harzburgite
Common Associates
Associations Based on Photo Data:
| 1 photo of Harzburgite associated with Enstatite | Mg2Si2O6 |
| 1 photo of Harzburgite associated with Pyrope | Mg3Al2(SiO4)3 |
| 1 photo of Harzburgite associated with Forsterite | Mg2(SiO4) |
| 1 photo of Harzburgite associated with 'Olivine nephelinite' |
Internet Links for Harzburgite
mindat.org URL:
https://www.mindat.org/min-48415.html
Please feel free to link to this page.
Please feel free to link to this page.
Gabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany