Need help with identifying these rocks, is this real Silver in them??

[THR214]

Hi, I posted this is the general area as well, jst trying all areas to get some info. I am a newbie here, first post for me! I recently found these rocks and I am trying to figure out what they are. Could this be real silver in them? Any help is appreciated. The first has layers in spots where I can fit a razor blade in between them, the spots are soft, pushable. the smaller looks like a dark silver in person, and is covered like glitter.
Thank you

 

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[wvwildman]

pyrite

 

[THR214]

How can you tell? I do not know much at all, but I always thought pyrite was "fool's" gold.

 

[wvwildman]

look up pics of pyrite on the internet and then look at pic of raw silver

 

[TeAra]

the set of 4 same rock look to be mica. does it flake off easy?

 

[Eu_citzen]

I think Teara may have nailed it: Mica. Looks flaky and shiny, almost plastic like.
Silver will be malleable and metallic. A silvery streak would be left on unglazed porcelain.

 

[THR214]

It doesn't flake off the stone, it is in there and has to be pulled out, but does separate easily. It is almost like fanning a magazine with your finger. Some of the pieces I did pull out looked almost like a glazed sliver of glass or plastic almost transparant, and some were harder like a very thin piece of tin or the small springs inside of a watch.
I found another stone today with these very dark square posts coming out of the center, I cracked the rock to get some of it out and placed a magnet on it and it stuck to it. This was out of the same batch where I found the others I pictured. I just wanted to add that in to help the info.

 

[THR214]

Thank you to all that have been adding their input, it is really appreciated.

 

[Turkısh Man]

Specularite Hematite (iron ore ) contains mica flakes.