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.
1 Minerals Are Solid: substances that don't droop or melt or evaporate. 2  Minerals Are Inorganic: substances that aren't carbon compounds like those found in living things. 3  Minerals Are Crystalline: substances that have a distinct recipe and arrangement of atoms.rganic Minerals. The rule that minerals must be inorganic may be the strictest one. The substances that make up coal, for instance, are different kinds of hydrocarbon compounds derived from cell walls, wood, pollen and so on. These are called macerals instead of minerals (for more see Coal in a Nutshell).