"Hornstone" Quotes from Famous Books
 ... granite. The rocks about Kingston are usually a very compact limestone, of a bluish-gray color, having a slight silicious admixture, increasing as the depth increases, with occasional intrusions of quartz or hornstone. The limestone strata are horizontal, with the greatest dip when nearest to the elder rock on which it rests; their thickness, like the depths of the soil, varies from a few feet to a few inches: in these formations many minerals are observed; ...
— The Conquest of Canada (Vol. 1 of 2) • George Warburton |
