I found this rock in our backyard in Germany. As our garden is filled with bushes it was very oddly placed and I have carried this rock around with me ever since, wondering what sort of rock it might be.
It is quite heavy, neutral in smell and does not seem to be brittle. The surface is very rough and contains sharp edges as well as holes. Its colors vary from a dark grey to a brownish color and it reflects light/ shimmers in some places.
There are several spots on the rock that are golden and one particular place where the gold has a red undertone (sort of like copper).
It seems to have a magnetic field, yet only a very weak one.
The rock measures 9 cm in lenght and weighs around 578g
If you have any clue on what rock this might be I would very much appreciate it!