Help with identifying

[Jaxson]

These nuggets were found on a very magnetic rock but they are not magnetic
They were easily broken off The Rock. I just tapped on them and they came off. They were covered in a black charcoal like soot.
I'm having a hard time identifying them

 

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[DDancer]

Try a streak test. Also can you describe the wieght?

 

[Jaxson]

Streak test is grey on the back of a piece of tile
The weight of both stones were weighted together:
31 millimeters, 5 centimeters, 7.26 grams per cubic centimeter
This is a photo I took today with a streak test at the bottom left on the tile. The photo makes the streak test look more gold but it is more of a silver/grayish color
I realize in this photo the stones look more gold than silver but it really just depends on the way you hold them and the lighting

 

[Jaxson]

Here is a photo of the two stones before I clean them

 

[Moesia]

Pyrite most likely. Try scratching it with a steel knife, press hard.

 

[barberman]

Its Manganese. I did the same discovery process a couple months ago. Thought for sure I had found a meteorite. I rock guy from California set me straight. Here is a picture of my heavy rock. It was covered with a dark coating and when scrubbed and filed it's silver. Photo attached.

 

[barberman]

Here is a link from this site detailing it. http://www.treasurenet.com/forums/meteorites/110898-manganese-not-meteorite.html

 

[Jaxson]

Wow, looks very close to what I have I'll check that out thank you so much. Referring to the light color on the rock, hard to tell from the photo is that a white color or is it silver color?

 

[Jaxson]

Sorry for my stupid question earlier about the color I just noticed you did say it was silver after scrubbing
What did you scrub it or clean it with?
I had a heck of a time getting the black off the one's I have.
I had to use my Dremel

 

[Jaxson]

Looks like you may be correct. The only thing is I hit it several times with a hammer and it did not break or crack. According to what I read it's a brittle stone.
Does a magnet stick to yours?