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
Fall River granite steeples was constructed of Fall River granite. Unfortunately this building was destroyed by fire on May 11, 1982. The Chateau-sur-Mer mansion in Newport, Rhode Island is perhaps the best example of Fall River granite being used for private home construction. Fall River granite Fall River granite is a Precambrian bedrock underlying the City of Fall River, Massachusetts and surrounding areas along the eastern shores of Narragansett Bay. It was formed 600 million years ago, as part of the Avalon terrane. During the 19th century, the City of Fall River, Massachusetts became famous for the granite rock on which much of