If crystals grow up from the ground what do we call it?

When crystals grow up from the ground, this process is typically referred to as "crystal growth" or "crystallization." It occurs when minerals in the earth's crust come together in a specific arrangement, often due to changes in temperature, pressure, or the presence of certain chemicals. The resulting formations can be seen in various environments, including caves and mineral deposits. In some contexts, this phenomenon may also be described as "mineral formation."