Quarks are fundamental particles that are considered to be the building blocks of matter. They are not waves in the traditional sense, but rather point-like particles. According to our current understanding of particle physics, quarks are considered to be elementary particles, meaning they are not composed of smaller components.
However, it's important to note that particles can exhibit wave-like properties under certain circumstances, as described by quantum mechanics. This is known as wave-particle duality. In experiments, quarks can display wave-like behavior, such as interference patterns, when studied in the context of quantum mechanics. These wave-like properties are not unique to quarks but apply to all particles at the quantum level.
In summary, quarks are fundamentally considered to be particles, but they can exhibit wave-like properties under specific conditions.