More curiously, it was made of flint, a hard sedimentary rock not naturally found in Norway. It is a grayish-brown color, and the sharpened edges are jagged, ...

While Flint is a hard sedimentary rock, its use as a gem can help in the enhancement of your life. Flint or Chakmak Pathar gives you self-confidence and courage.

Sedimentary rock "chert" records cooling of the Earth over billions of years Research team analyses oxygen isotopes in 550 million-year-old samples ...

Flint, a hard sedimentary rock, does not naturally occur in Norway, so the dagger may have come from across the North Sea in Denmark, according to the statement. Related: ...

Lavas include igneous rocks like basalt and granite. Chert is a subgroup of sedimentary rock and includes flint, opal, and jasper. If toolmaking was more of an unstudied crapshoot, ...

Many of the finds were flakes of flint and chert - a hard, fine-grained sedimentary rock - but rudimentary tools were also discovered, according to the Local Democracy Reporting Service.

Most hag stones consist of flint, an abundant dark-colored variety of a type of sedimentary rock called chert. The thing that sets hag stones apart from other pebbles you might pick up at the ...