Joined: Sun Feb 25, 2007 12:44 pm Posts: 209 Location: Dallas, Texas
Bfian,
Post or make two additional tests. Color flat bed scanner image and the radiation detection image.
a] Color scanner:
Place sample on flat bed scanner
Run sample scan
crop scan area to stone image only
get as high a scan as scanner will allow
post name of scanner, model number, manufactorer
b] Radiation detection image of zircon;
Get packet of unexposed single sheet poloroid film with black backing
Place zircons on black side of a single plate
if there is any radiation from the uranium in the zircon it will appear on
the exposed developed picture.
As with contact prints, noting the time for exposure will tell the amount
of radiation.
Note: when I find hot radioactive stones, I use old film protection canisters for their storage. When film was important, many vendors made canisters to protect undeveloped film from airport radiation which could and often exposed undeveloped film. Now most photography is digital, these canisters are no longer popular, but make excellent storage containers for radiation resultant gemstones. If it is good enough to prevent airport x-ray then it likely will also contain radiation from a sample that could effect non-radiated gems of the same species? w
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