 China, there are numerous occurrences of corundum in crystalline schists; and in almost every case the mineral is of the gem variety. As far as known to the writer, there are no deposits in Asia now exploited for use in the arts, saving the emery of Asia...  Report of the Bureau of Mines - Page 216by Ontario. Bureau of Mines - 1899Full view - About this book
 | Canadian Institute - 1898 - 334 pages
...peninsula of India, and in China, there are numerous occurrences of corundum in crystalline schists; and in almost every case the mineral is of the gem variety....region of the Appalachian Mountains, along a belt that extends from New Jersey to Alabama. In the form of emery it is found at Chester, Massachusetts,... | |
 | Canadian Institute - 1898 - 314 pages
...no deposits in Asia now exploited for use in the arts, saving the emery of Asia Minor. In the Uniud States corundum is confined almost wholly to the region of the Appalachian Mountains, along a belt that extends from New Jersey to Alabama. In the form of emery it is found at Chester, Massachusetts,... | |
 | Ontario. Department of Mines - 1899 - 282 pages
...India, and in China there are numerous occurences of Corundum corundum in crystalline schists ; most every case the mineral is of the gem variety. As far...of the Appalachian mountains, along a belt Corundum , , - , »x » uud Emery that extends from New Jersey to ia the US ., , » ., fe Alabama. In the form... | |
 | Ontario. Legislative Assembly - 1899 - 1074 pages
...(.•unimliiin corundum in crystalline schists ; in<iiayan?i and in almost every case the mineral chln*- is of the gem variety. As far as known to the writer,...region of the Appalachian mountains, along a belt roruiKliim mid Kmrry that extends from New Jersey to in the US ... Alabama. In the form of emery it... | |
| |
