Grade-wise Reserves/Resources of Quartz and Sillica Sand in India (As on 01.04.2015) | |||||||||||||
(In 000 Tonne) | |||||||||||||
Grades | Reserves | Remaining Resources | Grand Total | ||||||||||
Proved STD 111 | Probable | Total | Feasi- bility STD 211 | Pre-feasibility | Measured STD 331 | Indicated STD 332 | Inferred STD 333 | Reconn- aissance STD 334 | Total | ||||
STD 121 | STD 122 | STD 221 | STD 222 | ||||||||||
Glass | |||||||||||||
Ferro-silicon | |||||||||||||
Sodium silicate | |||||||||||||
Ceramic and Pottery | |||||||||||||
Foundry and Moulding | |||||||||||||
Abrasive | |||||||||||||
Others | |||||||||||||
Unclassified | |||||||||||||
Not-known | |||||||||||||
Total |