Here's a more detailed breakdown:

* peridotiet: This is the most common rock type in the mantle, consisting mainly of olivine and pyroxene.

* olivine: A silicate mineral rich in magnesium and iron.

* pyroxene: A group of silicate minerals with various compositions, including calcium, aluminum, and sodium.

* Andere mineralen: The mantle also contains trace amounts of other minerals, such as garnet, spinel, and amphibole.

Important to note:

* The mantle is not a uniform layer. Its composition and structure vary with depth.

* The upper mantle is generally less dense than the lower mantle, and the pressure and temperature increase with depth.

* The mantle is mostly solid, but it can flow slowly over geological time scales due to the intense heat and pressure. This flow is responsible for plate tectonics.

Let me know if you'd like more information on any specific aspect of the mantle!