What is the Chemical formula for plagioclase?

Answer 1

Feldspar makes up over half of the earth's crust. It consists of continuous, negatively charged, three-dimensional framework that is made up of corner-sharing tetrahedrons and positively charged cations.

Answer 2

Chemically and systematically speaking, fluorite should be the anionic part of NaFO2, sodium fluorite: FO2- ion. (Compare with sodium chlorite: NaClO2)

But this compound is not likely to exist and so, mineralogical chemists -not very keen on systematic naming in accordance with IUPAC rules- never had to change their (incorrect) name of CaF2: calcium fluorite (main component of the mineral: 'fluorite') in the chemically correct one: Calcium fluoride.

So, mineralogically speaking, fluorite (fluorspar) is CaF2 which is calcium fluoride.

Answer 3

The chemical formula for plagioclase feldspar is (Na,Ca)(Al,Si)AlSi2O8. It is a solid solution series between albite (NaAlSi3O8) and anorthite (CaAl2Si2O8), where sodium (Na) and calcium (Ca) ions substitute each other within the mineral structure.

Answer 4

Plagioclases are a subseries of minerals inside the feldspars. They occupy a range between NaAlSi3O8 and CaAl2Si2O8

Answer 5

Fluorite is calcium fluoride, CaF2

Answer 6

Potassium (potash) feldspars is KALSi3O8

Answer 7

chemical formular for feldspars

Answer 8

Alsi3O8

Answer 9

it is CaF2