61. Specific gravity of calcite
62. UHV range of G grade coal in KCal/kg.
63. Orthoclase scratched by
64. Minerals contains . . . . . . . .
65. Sillica percentage in basic intermediate ignious rocks.
66. UHV of 'C' grade coal in KCal/kg.
67. Cleavage planes means
68. Hardness of magnetite
69. Branch of Geology dealing the formation, occurance and classification rocks under
70. Specific gravity of Zns
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