Identify shiny flakes

[Biotite]

Currently not a prospector/fossicker but interested in the field. I came across some shiny flakes in a stream and couldn't work out if it is gold or not. Depending on the light it looks golden or silver. Photo is about half a millimeter and was the biggest flake in the area. When I tried to move it on my finger it flaked apart. Can anyone help identify with my blurry photography? Thank you

 

[RM Outback]

Pyrite possibly, also known as fools gold, pictures really do need to be in focus for anyone to be sure.

 

[Gimp]

Mica

 

[cairnspom]

I'd check out your name!