Knapping is the shaping of flint, chert, obsidian or other suitable material through the process of chipping off small pieces, thus shaping the piece into a desirable tool, weapon, or work of art. The process takes advantage of the fracture style of cryptocrystalline quartz and glass. Lacking cleavage or any natural weaknesses quartz fractures along smooth curved surfaces which often come to very sharp edges. This property is called conchoidal fracture.
This article is republished here with permission of its author, Kathleen Cappon. She wrote the piece for the September, 2018 Wayne County Gem and Mineral Club newsletter.
This is a story about how I dreamed of having a large stone chimney on my future home. The idea was inspired by seeing the stone pillars at the entrance of Fair Haven State Park each time my family went there in the 1950’s.
Some of you may remember the movie “The Long Long Trailer” starring Lucille Ball and Desi Arnaz. They purchase a travel trailer to go cross country and at each new place Lucy picks up a sentimental or pretty rock to bring home.