Such is the story of an Arkansas man who drank so much iced tea that it led him to develop kidney failure. Three Arkansas doctors described the case in a letter published by the New England Journal of Medicine this week.
What is Marble? Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is composed primarily of the mineral calcite (CaCO3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite.
Carrara Marble. Carrara marble, like all marble, is a metamorphosed limestone. Marble starts its life beneath the Earth's surface as limestone. As the limestone is subjected to heat and pressure through millions of years, it recrystallizes into marble.arrara marble has been favored as a sculpting material throughout history, especially in the Renaissance. Michaelangelo's famous sculpture, David, is made of Carrara marble.