Prasanna .
S
, 1. Aluminium is most abundant element 18 -
3 %
weight of earth Crust)
.
2 Al is major component of mica and days
.
3
Many aemstones are impure form of Algo , like Ruby- Er imposing
Sapphire
- So
1
.
4 Fe is 2nd abundant metal .
5. So
,
(Poisonous) is produced when Fe is extracted from iron pyrite(fess)
.Concentration
6 of one >
-
Isolation of metal >
-
Purification metal -
.
7 Concentration of one is also called dressing and benefication
8
Hydraulic washing :· Based on difference between specific gravities
called
gravity Separation
·
g
S
, 1. Aluminium is most abundant element 18 -
3 %
weight of earth Crust)
.
2 Al is major component of mica and days
.
3
Many aemstones are impure form of Algo , like Ruby- Er imposing
Sapphire
- So
1
.
4 Fe is 2nd abundant metal .
5. So
,
(Poisonous) is produced when Fe is extracted from iron pyrite(fess)
.Concentration
6 of one >
-
Isolation of metal >
-
Purification metal -
.
7 Concentration of one is also called dressing and benefication
8
Hydraulic washing :· Based on difference between specific gravities
called
gravity Separation
·
g
