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.
What are some characteristics of all minerals? Color is one of the most important distinguishing characteristics of minerals. Minerals vary widely in color: some are translucent and appear as white or light gray, even pastel, while others are darker and reflect light. Streak refers to the color that a mineral takes on when ground into a powder. Along with hardness, it is an important characteristic.
A rock has only two of the characteristics minerals haveâit is a solid and it forms naturally. A rock usually contains two or more types of minerals. Two samples of the same type of rock may have different kinds of minerals in them.Minerals are always made up of the same materials in nearly the same proportions. A ruby is a mineral.ach mineral has a definite chemical makeup: it consists of a specific combination of atoms of certain elements. An element is a substance that contains only one type of atom.