* Mineral stability depends on pressure: The temperature at which a mineral crystallizes is influenced by pressure. Higher pressure allows minerals to form at higher temperatures.
* Different minerals have different melting points: Some minerals have inherently higher melting points than others.
* Complex mineral systems: Many rocks and minerals are part of complex systems where multiple minerals can coexist and change depending on temperature and pressure.
Here are some examples of minerals that form at very high temperatures:
* Diamond: Forms under immense pressure deep within the Earth's mantle. While diamonds are incredibly stable at high temperatures, they are not necessarily the highest melting point mineral.
* Olivine: A common mineral in the Earth's mantle, often found in peridotite. Olivine can crystallize at temperatures above 1000°C.
* Pyrope Garnet: A high-pressure, high-temperature garnet found in kimberlite pipes, which are conduits for deep mantle rocks.
Instead of a single answer, it's more accurate to say that the minerals with the highest crystallization temperatures are those found in the deepest parts of the Earth's mantle, under extreme pressure and heat.
Let me know if you'd like to learn more about specific minerals and their formation conditions!
