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Post by gr on Sept 28, 2010 20:24:30 GMT -5
Need a little help with these. Not sure what type of rock they are but a file and a quartz crystal won't scratch them. They are opaque mostly but a few are translucent & opaque together. would appricate any help.
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Post by deb193redux on Sept 28, 2010 20:43:43 GMT -5
try a closeup shot of just one or two. Lots of red & yellow agates and jasper in Az.
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Post by gr on Sept 29, 2010 9:24:49 GMT -5
I'll try and get a close shot . any one or two in perticular?
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AGATEGRRRL
spending too much on rocks
AGATEGRRRL
Member since October 2007
Posts: 466
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Post by AGATEGRRRL on Sept 29, 2010 10:16:29 GMT -5
Hi, I live in AZ & they look to be a jasper or chert. What area did you find them in?
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Post by deb193redux on Sept 29, 2010 11:16:52 GMT -5
very likely the ones on the left are jasper or jaspagate if they are as hard as you say. The ones on the right look like chert (chemically the same as jasper, but forms in sediment) because of the white rind.
Sometimes muted reds and yellows are AZ pet wod, but this does ot have the look.
Most of this stuff does not have a name, but might be designated by the general region (e.g., Burro Creek). I am not seeing a lot of distinct color and pattern in these, but if you did try a closeup, try to capture any distinctive pattern and color that might let someone recognize something they know the name/region. But it is also very likely there is no name beyond jasper.
When you get some variation of color or interesting shapes or lines in an area about the size of a half-dollar, then t starts to have potential to make a nice cab. Otherwise it just makes a shiny cab, but a shiny cab of muddy yellow is not going to find it s way into much jewelry.
There are some reference photos of southwest material in PDF files that have been collected by members. You might look thorugh those.
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Post by gr on Sept 29, 2010 13:37:53 GMT -5
AGATEGRRRL, I found these just outside of Holbrook Az. They seem to collect in beds like they puddled there. How weired is that . What part of Az. do you live? I was born and raised in Phx.
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Post by gr on Sept 29, 2010 13:46:53 GMT -5
deb193redux, my camara just won't do that good of a close-up and I know I need this so people can see details to help ID some of my finds. A better camara is the next item up for bid. I've got some peices with some pretty interesting pattern. If I can get some good pics I will post them. Thanks for responding with some good info.
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Post by gr on Sept 29, 2010 13:47:57 GMT -5
AGATEGRRRL, I found these just outside of Holbrook Az. They seem to collect in beds like they puddled there. How weired is that . What part of Az. do you live? I was born and raised in Phx.
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Post by deb193redux on Sept 29, 2010 14:18:59 GMT -5
deb193redux, my camara just won't do that good of a close-up and I know I need this so people can see details to help ID some of my finds. A better camara is the next item up for bid. I've got some peices with some pretty interesting pattern. If I can get some good pics I will post them. Thanks for responding with some good info. For slabs and ID purposes, consider a scanner. You can get an all-in-one printer with an adequate scanner for about $50. (a little more if you want wireless). I find it necessary to seal the top glass with aquarium sealent, or over time scanning damp/wet slabs eventally results in water getting into the unit and ugly things happen. But, if you only use damp slabs, you can beg off the sealent. For a camera, do not go for the high dollar latest mega mega pixel camera, or even a digital-SLR (unless you want an SLR for other reasons.) You do not need more than 800x600 or 1024x768 for online posting, so all the mega pixels are wasted. Find a point and shoot camera that has a MACRO focus option, and/or regular focus that goes down to 18". Consider an older model with only 3-5 megapixels, or refurbished. Lots of good options for under$100.
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