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. What remains is a nearly pure carbon material that crystallizes into mineral graphite.
Egg White Nutrition Basics. According to the Egg Nutrition Center (ENC), the average egg contains about 6.29 grams of protein, 3.6 of which come from the egg white. In addition to proteins, other nutrients found in the egg white are riboflavin, niacin, folate, vitamin B12, calcium, iron, copper, zinc and sodium.
Yolks have protein, but they aren't especially the healthiest part of the egg. Photo Credit DAJ/amana images/Getty Images. Youâll get plenty of protein no matter which part of the egg you enjoy -- the white or the yolk. Egg whites, however, have a bit more protein and arenât full of unhealthy components found only in the yolk. If you separate a whole large egg and pull out the yolk, youâll get about 3.6 grams of protein from the whites. The yolk of a large egg has 2.7 grams of protein.