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Generally referred to as micaceous minerals, biotite and muscovite are silicate minerals having perfect basal cleavage. They both contain most of the same elements, just in different quantities. However, biotite is soluble in sulfuric acid and has iron and magnesium in it, where muscovite does not. They can be found in all types of rock.
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Why Muscovite is lighter then biotite?
Chemical composition determines density. In this case, I think it's safe to implicate iron content.
What minerals does slate have in it?
Slate is mainly composed of the minerals quartz and muscovite or illite
How does silica from molten material affect the color of igneous rock?
The majority of minerals associated with igneous rocks are silicates. It is the proportion of certain silicate minerals that affects the color of igneous rocks. Igneous rocks that are high in orthoclase feldspar, quartz, and muscovite mica will be lighter in color than igneous rocks that are higher in olivine, pyroxene, amphibole, and biotite mica.
Which mineral is commonly found in the three matamorphic rocks slate schist and gneiss?
granite
What type of crystal habit does muscovite display?
Muscovite generally displays a micaceous crystal habit, of thin flexible sheets.
How are the minerals biotite mica and the Muscovite mica different?
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
What physical properties distinguish biotite from muscovite?
Both are platy, silicate, mica group minerals with perfect cleavage in one direction.
What two minerals share the common name mica?
Biotite and Muscovite.
What are the kinds of silicate minerals?
Quartz, Feldspar, Muscovite, Biotite are among most common silicate minerals.
What is the geologic mean of platy mineral?
Platy minerals are micas(muscovite and biotite) and chlorite
What group is mica in?
Mica is a group of sheet silicate minerals (e.x of micas : Biotite, muscovite)
What minerals have only one direction of cleavage?
Mica minerals have only one direction of cleavage. Examples are Muscovite and Biotite.
What is the difference between mica and quartz?
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
What is the mica mineral symbol?
Muscovite (clear) and Biotite (black) are the commonest mica forms. Fuchsite (green) is an unusual mica containing chromium. Please see the related link below for a listing of the mica group of minerals.
Which Mineral is flat and flaky?
micas such as muscovite, biotite
What mineral separates into sheets?
Many minerals separate into sheets. If the mineral has cleavage than it is common for it to separate into sheets. Mica separates into sheets.
What minerals make up 90 of the earths crust?
There are ten minerals that are so common that they make up 90% of the Earth's crust. These are quartz, orthoclase, plagioclase, muscovite, biotite, calcite, dolomite, halite, gypsum, and ferromagnesian minerals.
