0
coal used for electricity, and rare materials witch are not rare and used for electronics there the main reason electronics are expensive
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What rocks are felsic?
Felsic rock are igneous rocks that are rich of quartz, orthoclase and plagioclase minerals. Here is the list of felsic rocks: granites, rhyolites, aplites, and pegmatites.
How does the subsoil become rich in minerals?
The subsoil becomes rich in minerals as minerals from the topsoil leach down into the subsoil.
What is the difference between acidic and basic igneous rock?
Acidic igneous rocks are composed of high percentage of silicic materials (minerals) and are light in colour while the Basic igneous rocks are contains predominantly ferromagnesian minerals\materials, they have very little proportion of silica and are dark in colour.
Why are mafic minerals dark in color?
No. Felsic rocks are light-colored and high in silica. Mafic rocks are generally dark-colored and low in silica.
What are mafic rocks?
A mafic rock is composed of mafic minerals such as biotite mica, amphibole, proxene, and olivine. The actual word mafic refers to magnesium and iron; nevertheless, these minerals are called ferromagnesian. Mafic rocks include gabbro, scoria, and basalt. They each have about 46-85% mafic mineral crystals. Periodite, 86-100% mafic minerals, is considered ultramafic because of its olivine composition.
What are body fossils made out of?
It is made out of rocks and other kinds of rich minerals
Where do we find mafic rocks?
Pertaining to rocks rich in dark, ferromagnesian minerals.
Why do newly formed volcanic islands have a rich supply of minerals?
Volcanic islands have a rich supply of minerals because when a volcano erupts it produces lava (magma) and that lava has lots of rocks and minerals in it.
What minerals makes rocks especially vulnerable to chemical weathering?
Rocks that are rich in the mineral Calcite, such as limestone, are especially vulnerable to chemical weathering.
What rocks are felsic?
Felsic rock are igneous rocks that are rich of quartz, orthoclase and plagioclase minerals. Here is the list of felsic rocks: granites, rhyolites, aplites, and pegmatites.
What kind of rocks form when mineral rich water evaporates and from other chemical processes?
These minerals are called evaporites.
Which rock does China clay come from?
China clay is a type of clay that is rich in kaolinite, which is a layered silicate mineral. Silicate minerals are a type of rock-forming mineral.
Igneous rock that contains many dark silicate minerals and that also are rich in magnesium and iron have composition that is?
Basaltic Composition are Igneous rocks composed mostly of dark silicate minerals and plagioclase feldspar. Rich in elements of magnesium and iron. It is also known as mafic.
How does the subsoil become rich in minerals?
The subsoil becomes rich in minerals as minerals from the topsoil leach down into the subsoil.
What rock has more silica Extrusive or intrusive?
Intrusive rocks typically have more silica than extrusive rocks. This is because intrusive rocks form when magma cools slowly beneath the Earth's surface, allowing more time for minerals rich in silica to crystallize. In contrast, extrusive rocks form when lava cools quickly on the Earth's surface, resulting in a rock with less time for silica-rich minerals to develop.
What rock forms when mineral-rich water evaporates?
Chemical sedimentary rocks are formed from the precipitation from, or evaporation of, water that is saturated with dissolved minerals. In addition, most clastic sedimentary rocks are also formed from the cementing together of sediment particles by the precipitation of minerals from water.
The rich mineral plateau in Pakistan is?
Baluchistan Plateau is the rich in minerals. There are large reserves of Chromite, Gypsum, Copper and Iron Ore. Sulfur and China Clay is also found in this region.
