- Bermuda (Wikipedia)
Bermuda (/bərˈmjuːdə/; historically known as the Bermudas or Somers Isles) is a British Overseas Territory in the North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about 1,035 km (643 mi) to the west-northwest.
- Siliceous rock (Wikipedia)
Siliceous rocks are sedimentary rocks that have silica (SiO2) as the principal constituent. The most common siliceous rock is chert; other types include diatomite. They commonly form from silica-secreting organisms such as radiolarians, diatoms, or some types of sponges.