Quartz crystals are difficult to knap due to size, hardness, and crystalline structure, making them a "low-quality" raw ...
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The Clovis people made projectile points out of quartz crystals – possibly because they thought they had supernatural properties
The earliest hunter-gatherers in the Americas were expert stone knappers, and fashioned a variety of tools and weapons out of ...
Highlighting leading innovators in high-stability and low-noise frequency control technologies CALIFORNIA, CA, UNITED ...
We now use quartz-based crystals and their oscillators as standard components in nearly every design. There are countless versions available with different sets of specifications ranging from fairly ...
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