Definition: The word "algarrobilla" comes from the Latin word "algarobilis," which means "of earth." This term refers to a type of rock that resembles volcanic ash, but it is not truly ash. Instead, it contains a mix of silicate minerals, such as quartz and feldspar. The geological term for this kind of rock is "granulose." It's important to note that these granular rocks are known as granites or schists, though they can also form with other types of rocks like gneisses. The presence of a mixture of silicate minerals gives the name "algarrobilla" and suggests it's made up of various materials. The term is typically used for identifying certain types of volcanic rock that are similar to volcanic ash but don't have the characteristic of having a hard, dense texture. It helps to distinguish between these types of rocks from other ones found in different locations or under different conditions.

algarrobilla