Dolomite, also known as dolostone and dolomite rock, is a sedimentary rock composed primarily of the mineral dolomite, CaMg(CO 3) 2. Dolomite is found in sedimentary basins worldwide. It is thought to form by the postdepositional alteration of lime mud and limestone by magnesium-rich groundwater.olomite is thought to form when the calcite (CaCO 3) in carbonate mud or limestone is modified by magnesium-rich groundwater. The available magnesium facilitates the conversion of calcite into dolomite (CaMg(CO 3) 2). This chemical change is known as dolomitization.
Beowulf is considered an epic poem in that the main character is a hero who travels great distances to prove his strength at impossible odds against supernatural demons and beasts
Sir Gawain versus Beowulf. A true hero is one who is willing to sacrifice his own existence for the life of another. Two characters portrayed as heroes are Sir Gawain, a character from the tale Sir Gawain and the Green Knight, and Beowulf, another character from an ancient British epic entitled of the same name. The difference between Beowulf and Sir Gawain, is that Sir Gawain is a real hero, and Beowulf just thinks he is.