Igneous rock or magmatic rock, is one of the three main rock types, the others
being sedimentary and metamorphic. Igneous rock is formed through the cooling
Basalt is a fine-grained, dark-colored extrusive igneous rock composed mainly of
plagioclase and pyroxene. The specimen shown is about two inches (five ...
Most igneous rocks contain two or more minerals, which is why some rocks have
more than one color. For example, the most common minerals in granite are ...
Igneous rocks can be classified by their texture and composition. ... Let's start with
felsic rocks, which are light-colored rocks that contain a lot of feldspar and ...
As described in some of the previous topics, igneous rocks are produced by the
... All of these rock types are light in color because of the dominance of quartz, ...
Rocks primarily derive their color from their constituent minerals. Rocks rich in
feldspar and quartz are usually light in color, whereas those that have a lot of ...
FELDSPAR in INGENIOUS rocks↓. ↓ breaks down to ↓. ↓ sedimentary rock
mixed with other minerals↓. - which are blended into clay bodies - ...
Feb 9, 2011 ... Any of various crystalline or glassy rocks formed by the cooling and solidification
of molten earth material. Igneous rocks comprise one of the ...
Oct 26, 2000 ... Color is one of the first noticed and most obvious characteristics of a rock, but it is
also one of the most difficult to interpret. With the exception of ...
Today's Wonder of the Day was inspired by Levan from , AL. Levan Wonders, “
Can rocks come in more than one color?” Thanks for WONDERing with us, Levan