Quick Answer
Flintknaap with either quartz or flint, but note that flint is generally more effective due to its higher silica content and conchoidal fracture pattern.
Choosing the Right Material
When it comes to flintknapping, the type of stone you choose can make a big difference in the outcome. Flint is a popular choice due to its high silica content, which allows it to fracture conchoidally. This means that when struck, the stone breaks in a smooth, curved pattern, making it ideal for producing sharp edges and points. Quartz, on the other hand, has a lower silica content and tends to fracture more unpredictably, but it can still be used to produce sharp edges with more effort and patience.
Flint vs Quartz: A Comparison
Flint typically contains between 90-95% silica, while quartz contains around 60-70%. This difference in silica content makes flint more suitable for percussion flaking, a common technique used in flintknapping. When striking flint with a hammerstone, the silica-rich material tends to break cleanly and consistently, producing sharp edges and points with ease. Quartz, on the other hand, may require more force and effort to produce similar results, and the edges may not be as sharp or consistent.
Techniques for Working Quartz
While flint is generally easier to work with, quartz can still be used to produce high-quality stone tools. To get the best results from quartz, it’s essential to use a combination of percussion and pressure flaking techniques. Start by using a hammerstone to remove large flakes from the surface of the quartz, then use a pressure flaker to shape and refine the edge. It may take more time and effort to produce a sharp edge from quartz, but with practice and patience, it’s possible to create high-quality stone tools that are comparable to those made from flint.
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