What rocks are formed by heat and pressure?
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Which type of rock does B represent?
Igneous rock
Which type of rock does c represent?
What three minerals are most commonly found in igneous rock granite?
Granites and rhyolites consist predominantly of quartz and potash feldspar; gabbros and basalts, predominantly of pyroxene and plagioclase feldspar. Other rock types have intermediate mineral compositions.
Which minerals would you expect to see in granite?
Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually gives granite a red, pink, gray, or white color with dark mineral grains visible throughout the rock.
What three minerals are attracted to a magnet?
These are some of the more common minerals that demonstrate magnetic properties:
- Babingtonite (weakly)
- Chromite (weakly)
- Columbite (weakly)
- Ferberite (weakly)
- Franklinite (weakly)
- Ilmenite (weakly, always when heated)
- Iron-nickel (attracted to magnets)
- Magnetite (strongly)
What is the most common mineral that can be made into a magnet?
Lodestones
What minerals do magnets attract?
Iron, cobalt and nickel, as well as alloys composed of these ferromagnetic metals, are strongly attracted to magnets. Other ferromagnetic metals include gadolinium, neodymium and samarium.
What rock has magnetic properties?
Magnetite
What happens when a magnet is stationary inside a coil of wire?
A magnet and a coil of wire can be used to produce an electric current. A voltage is produced when a magnet moves into a coil of wire. This process is called electromagnetic induction . Notice that no voltage is induced when the magnet is still, even if it is inside the coil.