A rock is a stone of great hardness.
A rock is a very hard and solid stone . For geology , a rock is a cohesive solid that is made up of one or more minerals.
The most abundant minerals in a rock are known as essential minerals , while those that occur in small proportions are called accessory minerals .
rock types
It is possible to distinguish between different types of rocks. Monomineralic rocks are made up of a single mineral. Composite rocks , on the other hand, present different mineralogical species.
Igneous rocks are those that have been formed by the solidification of magma or lava. Metamorphic rocks involve the alteration in a solid state of rocks that are already consolidated in the Earth's crust . On the other hand, sedimentary rocks are formed by the consolidation of sediments that come from erosion.
Being subjected to the action of different agents, rocks can change over time. This cycle is known as the petrogenetic cycle and includes stages of weathering, erosion and sedimentation.
Symbolic use of the concept and analogies
By analogy to what a rock is from a geological point of view, anything that is firm, hard or constant is usually described as a rock. "His will is a rock" is a phrase that refers to a person who has shown exemplary strength or determination to carry out an activity or achieve a certain goal.
"Juan's arms are like rocks" , on the other hand, is a phrase that highlights the muscular development of this subject, referring to the appearance of his upper extremities.
Alcatraz prison is known as The Rock.
The Rock, Alcatraz prison
Nor can we ignore the fact that one of the most important prisons in the world is known as “The Rock”: Alcatraz. In San Francisco, specifically on a small island located in the bay of said American city, is where this prison is located. Among the most significant prisoners that it has held throughout its history is, for example, the mobster Al Capone, who was the most famous gangster in the United States in the first decades of the 20th century.
Furthermore, this prison has given rise to countless films that have revolved around it, as would be the case, for example, of "The Rock." Michael Bay was the one who went behind the cameras to film this film, starring Sean Connery and Nicolas Cage, which tells how the elite North American army has to rescue more than eighty people who have been kidnapped in prison. from Alcatraz.
Within this cinematographic field, it should be noted that there is an actor who is precisely nicknamed "The Rock." His great size and spectacular muscles are two of the hallmarks that have earned Dwayne Johnson this nickname.
a superhero
Likewise, we should not overlook the existence of a superhero also called The Rock. We are referring to one of the members of the Fantastic Four group.
This character gets its name from the fact that it has a rocky appearance. This characteristic, in fact, is its main weapon.