The Seven Sisters CliffsNestled along the coastline of East Sussex, England, the Seven Sisters White Cliffs stand as one of the country's most breathtaking natural landmarks. Part of the South Downs ...

Lime occurs very extensively distributed in nature, principally in combination with nitric, carbonic, and sulphuric acids—as in limestone, marble, chalk, gympsum, &c. Lime is looked upon by most ...

Kristin Braswell Popular for its glowing turquoise lagoon, Chalk Sound National Park is a landlocked park flanked by dozens of limestone islands and mangrove wetlands. Most areas of the water here ...

I looked up chalk on Wikipedia, for the simple reason that Sussex is a county of chalk downs. (Plus, I suppose, I felt shamed by my lack of geological knowledge.) ...

Obsidian is smooth and shiny so the figures are attractive to look at. Chalk, limestone, shale, and sandstone are all examples of sedimentary rocks. All these different sedimentary rocks are ...