a chunk of metal

At first sight, this amorphous chunk of metal looks like the botched result of an apprentice smelter's first attempt at making an iron ingot. A closer look at the evenly smoothed surface, however, reveals the presence of a grid of thin straight lines, faintly coloured, crossing each other at regular angles.

It is a chunk of metal.
It weighs four pounds.

You identify a chunk of metal.
It weighs four pounds and seven ounces, and it is worth about eight lauren and ten celeb.
Its keywords are chunk, metal, meteoric, and iron.