There are approximately 1.5 gallons of blood in an average human body. Average adult has 6 liters of blood (just under 1 and a half gallons), the average child has 1.5 liters, and the average infant has 500 mL of blood. Source(s): I'm a biology major.
Muscovite is another common mica mineral that has a single perfect cleavage similar to biotite and phlogopite. It also occurs in the same igneous and metamorphic rocks that biotite is found in. However, muscovite is much lighter in color than biotite, typically being colorless to white.
Neighborhood Rocks Search this Site. Mica (MIKE-uh) from Pegmatite. Mica is an amazing mineral! It bends, and it peels into thinner and thinner pieces -- so thin that you can see through it. Although mica looks like glass, it won't cut you. The mica on the left formed as melted rock cooled slowly, far below the surface of the earth.