Granite is intrusive which means that the magma was trapped deep in the crust and probably took a very long time to cool down enough to crystallize into solid rock.
Why does a magnet stick to granite.
Especially if it is mined from india.
Granite can be slightly magnetic.
If you bring rare earth magnet towards it the magnet attracts.
Long before people invented the small magnets that stick to refrigerators or the big magnets that pick up cars at the junkyard people discovered natural magnets.
But heat up the right type of stone to just the right temperature and you could end up with a magnet scientists now report.
Having dinner this evening around the granite kitchen worktop bar.
Oxides of iron and titanium are responsible for this.
This allows the minerals which form plenty of time to grow and results in a coarse textured rock in which individual mineral grains are easily visible.
Iron oxide is a fair permanent magnet ferrite magnets so if there is iron oxide in the granite it will be weakly magnetic unless the granite is laid on top of an fe containing material and your magnet is actually attracted to what is below.