Marble is a type of natural stone found on earth and is usually white though it can come in a variety of colors and patterns including white black yellowish brown blue gray green pink and red.
Marble earth science definition.
Most amazing high definition image of earth blue marble 2012 january 25 2012 updated february 2 2012.
It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is.
It is an intrusive rock meaning that it crystallized from magma that cooled far below the earth s.
Marble definition metamorphosed limestone consisting chiefly of recrystallized calcite or dolomite capable of taking a high polish occurring in a wide range of colors and variegations and used in sculpture and architecture.
Marble granular limestone or dolomite i e rock composed of calcium magnesium carbonate that has been recrystallized under the influence of heat pressure and aqueous solutions.
Commercially it includes all decorative calcium rich rocks that can be polished as well as certain serpentines verd antiques.
Using a collection of satellite based observations scientists and visualizers stitched together months of observations of the land surface oceans sea ice and clouds into a seamless true color mosaic of every square kilometer 386 square mile of our planet.
According to flickr the western hemisphere blue marble 2012 image has rocketed up to over 3 1 million views making it one of the all time most viewed images on the site after only one week.
Marble has many unique properties that make it a valuable rock in many different industries.
Marble is commonly used for sculpture and as a building material.
The photographs and captions below illustrate just a few of its varied uses.
Granite is an igneous rock composed of mostly two minerals.
This spectacular blue marble image is the most detailed true color image of the entire earth to date.
Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.
Petrographically marbles are massive rather than thin layered and consist of a.