Conway granite Conway granite Conway granite is a typically pink mineral-rich igneous (or mesoperthitic) biotite granite. It is amphibole-free and of coarse particle size (with portions of the rock fine-grained or porphyritic). Conway granite has a relatively high concentration of thorium, at about 56 (±6) PPM; this amount is not enough to make the granite dangerously radioactive, but it is sufficient to make the rock a low-grade (almost certainly not economic, at least in the early years) source of thorium for a thorium fuel cycle. Geologist Edward Hitchcock named the granite in 1877 after the town of Conway, New Hampshire, which is
Granite, Colorado inches is provided for it is not considered that the prescribed limit can with reasonable safety be exceeded. While Granite is a ghost of what it once was, what with both a railroad and a major highway running through it has survived the years. However, many old ghost towns remain in the hills surrounding Granite. As the prospectors searched for gold, every Arkansas River tributary was a potential gold mining site and a chance to strike it rich. About two miles south of Granite, Clear Creek empties into the Arkansas River. Although prospecting took place in this area as early