LIFE INDICES FOR IMPORTANT NON-FUEL MINERALS

S.No.

Mineral/Ore/Metal

Recoverable reserves estimated as on 1.4.2000       ( Based on exploration/prospecting)

Life Index (years)

.

.

Figure in million tonnes unless otherwise specified

(m.tonnes)

1

2

3

1

Bauxite

2462*

211

2

Copper metal (tonnes)

5297,000

80

3

Lead metal (tonnes))

2381,000

45

4

Zinc metal (tonnes)

9707,000

45

5

Gold metal (tonnex)

68*

Not Estimated

6

Iron ore

13460*

131

7

Chromite Ore

97

46

8

Magnesite

245*

542

9

Manganese Ore

167*

47

10

Limestone

75679*

254

11

Phosphorite (Rock Phosphate)

142

79

12

Sillimanite

                                   516*

    Very large

II

Garnet

52*

90

16

Kyanite ( tonnes)

2817000*

              265

17

Dolomite

4387*

438

18

Diamond ( Thousand carats)

982*

19

* Recoverable reserves estimated as on 1.4.1995. Estimates as on 1.4.2000 under preparation.