Common minerals that are used in glass production include antimony, feldspar, lead, lithium, quartz, silica, sodium carbonate, tantalum, calcite, gypsum, muscovite mica and orthoclase. The principal ingredient of glass is sand, which is primarily composed of quartz or silica.Continue Reading
Glass is an amorphous, brittle substance that is similar to a "frozen liquid." It is characterized by an absence of long-range order, a substantial number of vacant sites and the lack of atomic planes.
Glass is generally made from liquefied sand that is allowed to cool rapidly. Lime and soda are often mixed with the sand to change the internal structure of the glass. Other compounds such as aluminum oxide, magnesium oxide, boron oxide and lead oxide are also used as additives, which directly influence the properties and the type of glass formed.Learn more about Geology
The main natural resources of France are iron ore, salt, sulfur, bauxite, zinc, uranium, antimony, arsenic, potash, feldspar, fluorspar and gypsum. The country also has substantial amounts of renewable energy and is known for its extensive timber and fishing industries.Full Answer >
Granite is a type of intrusive igneous rock comprised primarily of quartz and feldspar. When magma cools and hardens below the Earth's surface, the resulting rock is called an intrusive igneous. When this phenomenon happens on the Earth's surface, the rock is classified as extrusive igneous.Full Answer >
Granite is an igneous rock comprised primarily of quartz and feldspar. It is lightly-colored with a coarse texture and is considered an intrusive rock due to its formation underground.Full Answer >
Kimberlite is a rough-textured igneous rock that can range from green to blue in color and typically lacks minerals common to other igneous rocks, such as quartz and feldspar. Its major component is olivine, which gives it its characteristic blue-green coloration.Full Answer >