coloradogoldcamp.com /tutorials-articles/ fools-gold/-----Ther e are several minerals that are called "fools gold". I've been to Utah. I know this stuff.Mica and Biotite is another fools gold
that we frequently find and mistake for gold . The three most
commonMica minerals are; muscovite, biotite and lepidolite. The mica
group varies in color from golden, brown, silvery, black to white and is
semi translucent. Micas are sheet silicates and have a nearly perfect
basal cleavage which means that you can easily separate the sheets and
flake off pieces. 4951