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Life After Brown
Rockhounder's club (on topic)
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<blockquote data-quote="zubenelgenubi" data-source="post: 5321377" data-attributes="member: 63706"><p>My area isn't known for flint. This is translucent, as you can see where there is a chip, it is diffusing the light, whereas flint is opaque. Flint, chert, jasper and chalcedony (sard is just brown chalcedony) are all variations of quartz, or silicon dioxide, to be precise. If this is chalcedony, it would also cause iron to throw sparks like flint does, due to the hardness of the material.</p></blockquote><p></p>
[QUOTE="zubenelgenubi, post: 5321377, member: 63706"] My area isn't known for flint. This is translucent, as you can see where there is a chip, it is diffusing the light, whereas flint is opaque. Flint, chert, jasper and chalcedony (sard is just brown chalcedony) are all variations of quartz, or silicon dioxide, to be precise. If this is chalcedony, it would also cause iron to throw sparks like flint does, due to the hardness of the material. [/QUOTE]
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