goldfinger1
starting to spend too much on rocks
Member since November 2008
Posts: 154
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Post by goldfinger1 on Nov 18, 2021 6:35:11 GMT -5
Hello
I have a large gold in quartz specimen. 4* x 2.5" x 1.5". Am trying to determine how much gold and where it's located inside the specimen.
Where could one go to have it xrayed? Anyone have any ideas? Forget about medical facilities. Don't believe they would do it unless you know someone.
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Post by knave on Nov 18, 2021 6:36:56 GMT -5
Find a seedy looking chiropractor business
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Post by RickB on Nov 18, 2021 8:08:27 GMT -5
What knave said, or bring it along the next time you visit your family dentist. |
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Post by hummingbirdstones on Nov 18, 2021 9:36:17 GMT -5
If you have a university with a geology dept. near you, you could call them and ask them for suggestions.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Nov 18, 2021 13:08:04 GMT -5
If all you want is an estimate of how much gold you have all you need to do is get the specific gravity (density)of the sample. There are several ways to do that at home (see google). The specific gravity of quartz is 2.65 and gold is 19.32. Once you have the specific gravity of your sample that number divided by 19.32 and you have a good aproximation of the percent of the sample that is gold. Most Geology departments will not have that kind of x ray machine. It would a lot of x rays to tell you where the gold was inside the sample.
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NDK
Cave Dweller 
Member since January 2009
Posts: 9,440
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Post by NDK on Nov 21, 2021 13:00:08 GMT -5
goldfinger1 Know anyone that's a welder? Depending on where you're at there may be a shop that has an x-ray for welds. (IDK how it works - or if they'd be able to x-ray a rock) but they use it to check welds on race chassis for cracks.
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