Please help Identify?, Have an odd specimen, not sure exactly what it is... Options

[CoolGems312]

We could use your honest opinion on this object. A friend suggested meteorite, even though there wasn't much fusion crust left on it. We did some research online an the closest resemblance was the hexahedrite with the blue fusion crust. We also did some home tests; this is what we know:
The dull grey/blue exterior was grazed with a small grinding wheel. It now looks like shiny new metal with only a few spots that show rust after getting it wet. Has weak magnetic attraction, leaves light grey streaks on non-glazed porcelain, heavier than other rocks of it's size, looks like chrome inside when sawed, but has micro bubbles when chipped off. After chipping off a small piece, we hit with a hammer. It crushed like stone with some very shiny specks that flattened out, and the rest turned to powder. All particles were picked up by a magnet.
We have looked at thousands of pictures of meteorites and meteor-wrongs, foundry slag & ore, and we only found three that were close. All of which were confirmed meteorites. Unfortunately, origin and history are unknown. What do you think? If not meteorite, do you have a clue of what it might be? Thank you for your time.

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[MikeS]

Well CoolGems321, I think with that the specific gravity test (5.76 times the weight of water) rules out a meteorite. However it leads me to believe that you may have a piece of Arsenic.
Arsenic is commonly mixed with slight amounts of antimony, nickel, silver, iron and/or sulfur which could explain the mild magnetic effects and other physical properties.

There is a way to test your piece for Arsenic which it sounds like you have already done more than once. When you struck it with a hammer or cut it do you smell garlic?