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Post by gr on Sept 29, 2010 17:51:37 GMT -5
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Sept 29, 2010 18:10:05 GMT -5
Did you wet the slabs?
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Post by deb193redux on Sept 29, 2010 20:38:10 GMT -5
was the scan resolution at least 300dpi?
The last one does not look at all translucent. That would mean jasper, not agate.
I don't think any of these have a name.
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brent
fully equipped rock polisher
Member since November 2008
Posts: 1,316
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Post by brent on Sept 30, 2010 9:28:54 GMT -5
A friend of mine scanned a small piece of garnets in matrix for me and it came out super clear. Not sure what settings he used. Looks like I deleted the pic from my collection. I need to get a new scanner/printer, then I can try it for myself. It can be done, keep trying.
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docharber
has rocks in the head
Member since October 2008
Posts: 716
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Post by docharber on Sept 30, 2010 17:48:07 GMT -5
I've scanned stuff to post here and to send to Mel for ID. I don't need really high resolution, but my all-in-one software lets me "photoshop" a bit. I wet the stones, lay them face down on plastic wrap stretched over the bed to protect the glass, and have at it. i use a piece of white paper over the stones if the lid doesn't sit fairly flat which reflects light and brightens the image a bit. The scanner has an autoadjust that will give a dark image if the cover or paper isn't tightly in place.
Mark H.
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Post by gr on Sept 30, 2010 20:32:12 GMT -5
I wet the stones with a light coating of cooking oil because it won't evaporate like water. I didn'tcheck my dpi (didn't know that was an option on the scanner) I'll check that out. I'll put the paper on too, that just makes sense. THKs!...Gary
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