* Olivine: The most abundant mineral in lherzolite, typically ranging from 40-60%.
* Orthopyroxene: Another major constituent, typically 20-40%.
* Clinopyroxene: Can range in abundance from 10-20%, depending on the specific type of lherzolite.
* Other Minerals: In smaller amounts, lherzolite can also contain:
* Spinel: This is a common accessory mineral, which can be replaced by garnet in some types of lherzolite.
* Chromite: Another important accessory mineral, particularly in some types of lherzolite that have been metamorphosed.
* Ilmenite: A titanium-iron oxide mineral.
The exact mineral composition of lherzolite can vary based on factors like:
* Depth of origin: Lherzolite found deeper in the mantle will be subjected to higher temperatures and pressures, which can influence mineral compositions.
* Geochemical environment: The specific chemical composition of the mantle can influence the minerals present.
* Degree of metamorphism: Lherzolite can be metamorphosed, leading to changes in its mineral composition.
Note: Lherzolite is a very important rock type because it provides insights into the composition and evolution of the Earth's mantle.
