Iron ore and magnet.
Schlüsselwörter
mineral,
geology,
material,
iron,
ore,
rock,
stone,
magnet,
metal,
industry,
natural,
magnetite,
pebble,
metallurgy,
brown,
sample,
isolated,
raw,
rust,
object,
background,
oxide,
quarry,
specimen,
smelting,
heavy,
deposit,
melting,
exploitation,
lodestone,
white,
black,
steel,
grey,
environment,
iron ore,
ecology,
community,
hard,
cyberspace,
dirty
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