The various types of mica do not contain elements which are significantly radioactive, e.g. K, Al, Si, O, F, H, Mg. (Rare isotopes of several common elements are part of the normal background radiation and no excess of these is found in mica.) Of course, there is the possibility that at any given mining site there can be contamination from other sources, but that is true of anything. Some examples showing the elements in mica are given below.
The mica group contains 37 different sheet silicate (phyllosilicate) minerals. The chemical formula for the various types is complicated. Here are two common examples.
Common mica (also called Muscovite ) is KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O). Magnesium mica (Phlogopite) has the chemical formula KMg3AlSi3O10(F,OH)2. There are many more forms in the mica group of 37 phyllosilicate minerals.
Mica is a group of minerals, yes.
the setting of Stargirl is in Mica (Mica Area High School), a made-up town in Arizona. Great part of the story happens there.
Mica has perfect basal cleavage.
rough
On Moh's scale Mica group minerals ranges 2.5 to 3.0 in hardness.
Mica is a key component in electrical equipment. In the years 2006-2007 India exported 15.21 million US dollars worth of mica, and that number has been steadily growing.
mica has the specific gravity of 2.88
Mica Is Not A Renewable Resource Because Think About When Muscovite Mica And Biotite Mica Go Extinct. Muscovite Mica And Biotite Mica Are Both Types To Make Mica, And If That Goes Extinct Then Mica Will Be Extinct Too.
mica,mica,mica
Mica Milosevic goes by Mica.
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
Mica is flexible; Mica has a flat transparency, sight glass.
Mica. Mica Mica
No. Mica is a silicate.
No. Mica is a silicate.
Mica has a white streak.
Biotite is dark mica. Muscovite mica is light in color.
The fracture of Mica is its mineral structure.