A break in the acetabulumâthe socket located on each side of the pelvisâis less common than other types of pelvic or hip fractures. It usually occurs as the result of a car accident or fall from a significant height, with damage to other bones and soft structures in and around the hip and pelvis.
The first and most basic characteristic of all minerals is that they occur naturally. Minerals are not made or influenced by human activity. However, some minerals, such as diamonds, can be manufactured by humans.
Minerals are defined as naturally occurring, inorganic, solids with a definite chemical composition and a regular, internal crystalline structure. The keys to this definition are the chemical composition and the crystalline structure. Different chemical compositions result in different minerals.A good example is the mineral plagioclase.lbite has a chemical composition of NaAlSi. Different crystalline structures, or how the atoms and molecules are arranged, result in different minerals. A good example is diamond and graphite. Both minerals are composed of carbon (C).