Records of the Geological Survey of India, Volume 76, Issue 12Geological Survey of India, 1942 - Earthquakes |
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Page 4
... Diamond • Scale of hardness . 19 2 3 4 5 6 7 8 • 8 9 9-5 to 9.75 10 It is obvious that , other things being equal , the harder the mineral the more abrasive power it possesses . IV . CLASSIFICATION . The important abrasives may be ...
... Diamond • Scale of hardness . 19 2 3 4 5 6 7 8 • 8 9 9-5 to 9.75 10 It is obvious that , other things being equal , the harder the mineral the more abrasive power it possesses . IV . CLASSIFICATION . The important abrasives may be ...
Page 5
... diamond is known as carbonado or bort . On account of its toughness and absence of cleavage , it is suitable for abrasive purposes . Diamond dust obtained during the cutting of large diamonds is employed in the cutting and polishing of ...
... diamond is known as carbonado or bort . On account of its toughness and absence of cleavage , it is suitable for abrasive purposes . Diamond dust obtained during the cutting of large diamonds is employed in the cutting and polishing of ...
Page 6
Occurrence . In India most of the diamonds are found in the Kurnool or Vindhyan rocks of Southern and Central ... diamond it is the hardest mineral known and upon this character depend its qualities as an abrasive . Corundum has ...
Occurrence . In India most of the diamonds are found in the Kurnool or Vindhyan rocks of Southern and Central ... diamond it is the hardest mineral known and upon this character depend its qualities as an abrasive . Corundum has ...
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Common terms and phrases
A. L. Coulson Abrasive Industry abrasive purposes Abrasive wheels Almandite aluminium artificial abrasives B. C. Roy bauxite beds Bihar Burma Canada Department Carborundum cent chert coated abrasives coated cloth coke colour corundum Corundum occurs crushed crystals Department of Mines Deposits Dhalbhum Diamond Diatomite Emery employed felspar flint Fused alumina future trend garnet garnet sands Geol Geological Survey glass grains grey grinding hard Hazaribagh district high grade honing stones impurities ingredients iron J. A. Dunn J. A. Mineral Resources Kashmir Kyanite large quantities limestone LXXVIII M. S. Krishnan Madras manufacture of abrasive manufactured abrasives Marketing and future Memoir metal polish mica Mysore natural abrasives oxide paper and cloth pebbles polishing material powders Products of Canada Pumice Resources of Bihar Rewa Risin spur rock sandstones siliceous silicon carbide sillimanite Singhbhum steel balls Steel wool suitable surfaces Surv Survey of India Talc Tripolite varies Vindhyan Volcanic dust