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.
Although an egg has essentially no carbohydrates, it is packed with protein, healthy fats and other nutrients. A large egg has around 70 calories and slightly more than 6 grams of protein -- which makes a small contribution toward the daily protein recommendation of 46 to 56 grams per day for healthy adults. It also has 28 milligrams of calcium, 99 milligrams of phosphorus and 71 milligrams of potassium.