Colorado Jasper |
Colorado Jasper |
Oct 18 2008, 02:07 PM
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#1
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Master Mucker! Group: Admin Posts: 4,149 Joined: 7-October 03 From: Colorado Member No.: 3 |
Historically Colorado jasper was used exstensively by the native american indians as knapping material.
Found in a wide variety of colors around the state. Recent finds from Park county Colorado Nice piece with vibrant color! Red and yellow pieces. -------------------- CP-Owner/Administrator
www.ColoradoProspector.com IF YOU USE IT, THE GROUND PRODUCED IT! MINERS MAKE "IT" HAPPEN!! |
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Sep 7 2009, 10:32 AM
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#2
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Master Mucker! Group: Admin Posts: 4,149 Joined: 7-October 03 From: Colorado Member No.: 3 |
Hi GB and welcome, make yourself right at home in the forums. We are all very glad to have you aboard.
Firstly, I can not be held responsible for the worsening "rock fever" you will be enduring from now on. All I can say is, start collecting up buckets now, you'll need a head start. Q's will keep coming up too and we all love em', keep em' coming. We have a thread going that has some great info on the cherts and flints in the quartz sub varieties. That thread is titled "Mineral Id'ing" in the prospectors discussions section. Basically chert and flint are both rocks (not minerals) and they are catagorized in the quartz family sub varieties. Flint is described as granular cryptocrystalline variety of quartz and chert also a cryptocrystalline variety. There are both found in similar situations to form but slightly different environments (still trying to figure that part out myself) sedimentary formations such as limestone, chalk, and rhyolites can host them. Both chert and flint are opaque too where as chalcedonys and agates will be translucent. Flint is generally viewed as darker colored and chert being lighter in color.....usually, but not always. Chert also is known to have alot of fossils from algea, bacteria and micro organisms. Now, jasper also being a sub of quartz is described as a dense, opaque, microcrystalline variety of quartz, usually red, brown or yellow. Whew, there is alot of info on these. You can check out more on this from Mindat's quartz page, scroll down to varieties to find links to jasper, chert, and flint. Awesome database Mindat has, just great for learning the details of stuff like this. Lets see some pics of all the cool stuff soon too. Hope we didn't make the "rock fever" too much worse today. CP -------------------- CP-Owner/Administrator
www.ColoradoProspector.com IF YOU USE IT, THE GROUND PRODUCED IT! MINERS MAKE "IT" HAPPEN!! |
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