This is a bit tricky because it depends on *what* minerals are dissolved and how they precipitate out. Here's a breakdown:

General Principles:

* Dissolution: Minerals break down in water, forming ions (charged particles).

* Precipitation: When conditions change (temperature, pressure, water chemistry), these ions can re-combine and form new minerals.

Examples:

* Evaporites: As water evaporates, dissolved salts like halite (NaCl, table salt) and gypsum (CaSO₄·2H₂O) precipitate out.

* Carbonates: Calcium carbonate (CaCO₃), the mineral in limestone and shells, forms when dissolved calcium and carbonate ions react.

* Silicates: Some silicates, like quartz (SiO₂), can form from dissolved silica (SiO₂) in water.

Important Note: The type of mineral formed depends on:

* The specific ions in solution: Different minerals have different chemical compositions.

* The environmental conditions: Temperature, pressure, and other factors influence which minerals form.

So, the answer isn't a single mineral. It's a wide range of minerals that form depending on the specific circumstances.