A rock with iron in it.

Magnetite?

Nah.

Farmerman will be along in a while, after he's finished ploughing the lower meadow.

He's the expert.

No magnetite I think.
But why iron on it do not rust?

Where did you find it, and what did you use to cut it?

To try to identify it I would suggest testing the hardness of the rock (Moh's hardenss scale) and note if your are testing a particular mineral of the rock or if the rock seems to be composed primarily of one mineral (I can't really tell from the photos). I would also suggest determining the specific gravity of the rock (check the link below on how to do it)

http://minerva.union.edu/hollochk/pedagogy/files/kh2.pdf

Hopefully this helps

Did you find it near an old refinery? It might be slag from an old processing plant or something else man-made.

It does have a slag look about it. Otherwise it could be a diabase which has a mixture of iron rich silicates, some base iron an feldspathoids. Trouble with doing density is that , a rock is a mixture of minerals so its density can be all over the place.

Magnetics is a good forensic tool. I suspect that the hunks of iron in the rock body are magnetic "Blebs" If you whack it with a piece of quartz or a back of a hunting knife and then smell it here you whacked it. If it hs a sulfur like smell, chances are its a piece of slag.

I am also curious. What did you cut it with a masonry bit on a circular saw? You didnt use a rock saw cause it looks like the blade was not cutting too straight

Im in the"dry" gas fields of northern PA seeing to capping of gas wells and testing those that are capped. We use a helium and argon trick.
I went into a store near Mansfield and me and my field guys took a hit of helium from some or our balloons that we filled up for testing the wells. We all sounded like Minions . The people in the store tried not to laugh, the one woman laughd and apologized. When we ore off the helium she was kinda pissed at us.

That's funny.


I like the fact that men never grow up. A good dollop of silliness now and then keeps the world smiling.

@Lordyaswas
@KBQ1006
@rosborne979
@farmerman
Thank you for your answers and suggestions.

(I became passionate after the fall of a large Fireball in Vrancea zone, Romania, on January 7, 2015 I purchased a strong neodymium magnet and fixed it at the end of a stick of fiberglass. Anyway I was not in that area. And I think this stone is probably not a meteorite. )
I found the rock almost buried at surface on an unpaved road, near Bucharest, Romania. On a length of 100m of road, the magnet jumped to 30 stones or more but only this was more magnetic and interesting for me.... It is magnetic in particular in the areas where iron is observed.
I cut it manual with a tile saw. That's why was not cutting too straight. Bottom've broken it. Then I polished a little the surface. Some ditches remained unpolished. It felt a little hard to cut, especially in areas that contain metal. I did not feel smell of sulfur.

Probably slag of some type then.

But good luck finding that meteorite. That would be awesome to find.

I will sent a sample to Romanian Institute of Geology to determine the compostion of rock and Ni/Fe raport. I will tell you the result.

I have the analisis. It have inside around 20% metal but... it have almost no Nikel.
Its a sort of slag.

any numbers for carbon or carbonate ?

After cutting a slice that I left it to analyze the iron droplets inside looks better.
http://s16.postimg.org/6yk867c5h/IMG_3371.jpg


The analysis was done without cost. I got the result only by phone about the extremely small concentrations of Ni. I will ask about the amount of carbon or carbonate.

I received by mail the analysis result of 7 metallic spheres from the sample:

1.
Spectrum: Point
Element AN Series norm. C Atom. C
[wt.%] [at.%]
-----------------------------------
Iron 26 K-series 95.54 93.06
Calcium 20 K-series 2.81 3.81
Silicon 14 K-series 1.59 3.08
Nickel 28 K-series 0.06 0.06
-----------------------------------
Total: 100.00 100.00

2.-----------------------------------
Iron 26 K-series 89.89 76.81
Calcium 20 K-series 4.15 4.94
Carbon 6 K-series 3.57 14.18
Silicon 14 K-series 2.39 4.06
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00

3.-----------------------------------
Iron 26 K-series 90.43 77.13
Calcium 20 K-series 3.90 4.64
Carbon 6 K-series 3.80 15.06
Silicon 14 K-series 1.87 3.17
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00

4.-----------------------------------
Iron 26 K-series 91.47 78.73
Carbon 6 K-series 3.60 14.39
Calcium 20 K-series 2.84 3.41
Silicon 14 K-series 2.02 3.46
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00

5.-----------------------------------
Iron 26 K-series 88.66 75.11
Calcium 20 K-series 4.88 5.76
Carbon 6 K-series 3.66 14.40
Silicon 14 K-series 2.80 4.72
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00

6.-----------------------------------
Iron 26 K-series 93.59 85.44
Calcium 20 K-series 2.94 3.74
Carbon 6 K-series 1.91 8.09
Silicon 14 K-series 1.50 2.72
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00

7.-----------------------------------
Iron 26 K-series 93.36 84.17
Calcium 20 K-series 2.76 3.46
Carbon 6 K-series 2.33 9.77
Silicon 14 K-series 1.43 2.57
Nickel 28 K-series 0.00 0.00
-----------------------------------
Total: 100.00 100.00