Granite is a plutonic rock in which quartz makes up between 10 and 50 percent of the felsic components and alkali feldspar accounts for 65 to 90 percent of the total feldspar content. Applying this definition requires the mineral identification and quantification abilities of a competent geologist.t forms from the slow crystallization of magma below Earthâs surface. Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles and other minerals. This mineral composition usually gives granite a red, pink, gray or white color with dark mineral grains visible throughout the rock.
The current US Census Bureau world population estimate in 2016 shows that there are approximately 7,346,235,000 people on earth as of August 23, 2016, which far exceeds the population of 7.2 billion from 2015.
Demographics of the World 2016. As of 1 January 2017, the population of the world was estimated to be 7 486 520 598. This is an increase of 1.20 % (88 744 236 people) compared to population of 7 397 776 362 the year before. In 2016 the natural increase was positive, as the number of births exceeded the number of deaths by 88 545 673. Below are the key figures for the world population in 2016: 146 469 220 live births.