It is usually made from flint or chert. Other areas saw extensive use of limestone, granite and flint. Burton was born in Flint, Michigan. Stanley grew up in Flint, Michigan. Abbott was born in Flint, Michigan. Kovak was born in Flint, Michigan. Flintknappers are craftsmen who use sharp tools to reduce flintstone to flint tool. She grew up in Flint, Michigan. Chris Byrd was the youngest of eight children growing up in Flint, Michigan. Menear was born circa 1958 in Flint, Michigan. Flintlock is a general term for any firearm that uses a flint striking ignition mechanism. The main finds were enormous quantities of c.100,000 animal bones and c.20,000 flint artifacts. Newcastle also became a glass producer with a reputation for brilliant flint glass. From 2011 to 2015, Snyder appointed several individuals as Emergency Managers for Flint, Michigan. Many collection points have separate bins for clear (flint), green and brown (amber).