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.
Best Answer: Below are the major characteristics of metamorphic rocks. 1. Classified by texture and composition. 2. Rarely has fossils. 3. May react with acid. 4. May have alternate bands of light and dark minerals. 5. May be composed of only one mineral, ex. marble & quartzite. 6. May have layers of visible crystals. 7.