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.
Mt. Pelee, a stratovolcano made mostly of pyroclastic rocks, is on the north end of the island of Martinique. Martinique is part of the Lesser Antilles volcanic arc. The arc is formed by the subduction of the North American Plate under the Caribbean Plate.