Graphite is a naturally-occurring form of crystalline carbon. It is a native element mineral found in metamorphic and igneous rocks. Graphite is a mineral of extremes. It is extremely soft, cleaves with very light pressure and has a very low specific gravity.ome graphite forms from the metamorphism of coal seams. The organic material in coal is composed mainly of carbon, oxygen, hydrogen, nitrogen and sulfur. The heat of metamorphism destroys the organic molecules of coal, volatilizing the oxygen, hydrogen, nitrogen and sulfur.
The normal respiration rate for an adult is 14â20 breaths per minute. Newborns have a rate of 30â60 breaths per minute. Infants have 24â 40 breaths per minute, and children ages 1â7 have a rate of 22â34 breaths per minute. patient breath The normal pulse rate for an adult is between 60â100 beats per minute. Children and infants tend to have a faster pulse rate, between 120â170 beats per minute.
The heart beats about 100,000 times per day (about 3 billion beats in a lifetime). An adult heart beats about 60 to 80 times per minute. Newborns' hearts beat faster than adult hearts, about 70 to 190 beats per minute. The heart pumps about 6 quarts (5.7 liters) of blood throughout the body.