Is the little tiny yellow dot under your eye lens a genuine gold grain? If the yellow dot is larger than 100 micrometers, any geologist will have an easy diagnostic. But... if it is smaller than 50 micrometer, the size a human hair, be ready for an argument... and to bet a beer to your colleague at the coreshack! Under such a size, a gold grain can easily be confused with various sulphides, or a monazite, or certain micas, or even iridescence in iron oxide coated quartz grain. This is why we developed the IOS-Fieldgold detector, a gold (or lies) detecting device that you can plug onto your field tablet or logging computer. No needs to wait for assaying labs to win your beer! Just grab it and read the recently published coverage in Ressources Mines et Industrie magazine, vol.7-2.

Download at:

https://www.magazinermi.ca/ios-fieldgold-une-methode-facile-et-abordable-pour-identifier-lor-microscopique-lors-de-travaux-de-terrain/

''There are those who follow the rules... and those who define them''

Gold grain, approximately 200 micrometers in diameter, as seen at the surface of a core with a pocket microscope under natural light (left) and as detected in real-time by IOS-Fieldgold application. Detection remains dependable on grain as small as a few micrometers.