A little-known, but very true fact:
The industry that uses silver the most, is the Photography
and Film Industry
(And not the jewelry industry, as you might be led to believe from walking
into a jewelry store
On modern Photographic film (that includes the film used for movie pictures and x-ray film, the light is captured on something called
Silver Halide grains. This is a collective term for three components:
The Silver Halide grains are made by chemically combining Silver Nitrate
and Chloride, Bromide and Iodide.
In the process of developing the (negative) films, the silver halide grains
that have been exposed to light are transformed into pure silver oxide (which is black - this is why you are getting a negative image)
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