Hydrothermal Genesis

Hydrothermal Genesis: see also Magmatic Process – Crystallization Phases. A formation process occurring during the pneumatolytic phase of magma solidification, which takes place at temperatures between 550 °C and 372 °C, resulting in the formation of:

1. Minerals: Topaz, Scheelite, Cassiterite, Molybdenite, Wolframite
2. Vein Rocks: characterized by large amounts of gases and water vapor.

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