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Artificial minerals -- Development<br />Cupola furnaces<br />Flint
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Development Of An Artificial Substitute For Firestone, Joseph Edwin Stevens
Development Of An Artificial Substitute For Firestone, Joseph Edwin Stevens
Bachelors Theses
"Firestone is a natural occurring silica rock which is cut up into brick and shapes and used for lining cupolas. This rock is found in the east, mostly in Pennsylvania. It is dense, having a porosity of 5.6% raw and 16% after firing to cone 18. Its volume expansion upon firing was calculated to be 19.2%. Its appearance shows that it is evidently fine grained silica bonded with a small amount of clay and siliceous cement. This rock has such desirable characteristics for use in cupola linings that it would be of great importance to duplicate this rock synthetically in …