APPENDIX INORGANIC CHEMISTRY

Ores, Mineral and their Composition:

In inorganic Chemistry it is difficult to find out the ores, of a specific element. To solve the above criticism below i cited the Ores, Minerals of the chemical elements along with their compositions. For the sake of easy location the relevant information's are recorded according to periodic Groups as given in this page.
The Alkali Metals(Li, Na, K, Rb, Cs):
Consistent with their ns1 outer electron configuration, the Alkali Metals occupy Group-IA in the periodic table. They provide an important area of the systematic study in inorganic chemistry their physical and chemical properties can be readily understood in terms of their simple outer electronic configuration. Some of the elements, specially sodium and potassium, are extensively involved in our lives processes.
Lithium:
Total abundance: 65 ppm. 
In crustal rocks: 18 ppm.
Metal
 Ore
Composition 
Li
Lepidolite
LiF, LiOH, Al2(SiO3)3
Li
Spodumene
LiAl(SiO3)2
Sodium: 
Total abundance: 28,300 ppm. 
22,700 ppm in the earth's crust. Fifth most aboundent metal, after Al, Fe, Ca and Mg. It has only one natural isotope, 23Na.
Metal
 Ore
Composition 
Na
Borax
(Na2B4O7, 10H2O)(Na2[B4O5(OH)4]
8H2O
Na
Carbonate
(trona)
NaCO3
Na
Nitrate
(Salt Peter)
NaNO3
Na
Rock Salt
NaCl
Why Li does not occur with Na or K?
Li forms independent minerals because Li+ is too small to replace the more aboundent Na+ or K+ in their minerals. Rather it occurs in the alumino silicate minerals along with magnesium. These minerals are expected to separate in very late stage of crystallization of a Magma.
Potassium:
Total Abundance: 25,900 ppm. 
In crystal Rocks: 18,400 ppm. 
It occurs in three natural isotopes 39K, 40K, 41K and 40K is radioactive.
Metal
 Ore
Composition 
K
Carnallite
KCl, MgCl2, 6H2O
K
Sylvinite
KCl, NaCl
K
Sylvite
KCl

Ores, Mineral and their Composition

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