Look up tour de force in Wiktionary, the free dictionary. Tour de Force may refer to: 1  French phrase, meaning, a feat or display of strength, skill, or ingenuity, such as the funny movie is a comic tour de force.  Tour De Force (tour), 1986 Elton John Concert Tour.
Granite is an igneous rock composed of mostly two minerals: quartz and feldspar. It is an intrusive rock, meaning that it crystallized from magma that cooled far below the earth's surface.
Many, many years ago, deep underground, volcanic action melted rock into liquid magma. The magma cooled and solidified, and the result is called igneous rock. Granite is one type of igneous rock.Graniteâs crystal structure comes from quartz and feldspars. There are many ranges of colors of granite depending primarily on the feldspars. It may also contain mica or other dark minerals.any, many years ago, deep underground, volcanic action melted rock into liquid magma. The magma cooled and solidified, and the result is called igneous rock. Granite is one type of igneous rock.