No electric light or any light for that matter is ennergy.
no
Diamond is considered the hardest mineral known to man, while graphite is one of the softest. Diamond is an excellent electrical insulator, while graphite is a good conductor of electricity. This is due to the way the carbon atoms are arranged in each mineral.
Gold is primarily used in jewelry and electronics. It's both valuable and an excellent conductor of electricity.
Feldspar, the mineral, is not magnetic. Most, but not all, magnetic minerals contain iron.
One solution that will not conduct electricity is pure water. The reason is that it needs a dissociated ionic compound that can mix with water when detached, and then it will be unable to conduct.
mineral
Yes, electricity can travel through mineral water because of the presence of ions.
Many inorganic compounds conduct electricity.
Bulk Mineral Oil
Yes, but not particularly well.
coal is used
Coal
mineral fuel, machinery, cereals (corn,wheat), and electricity machinery.
Diamond is considered the hardest mineral known to man, while graphite is one of the softest. Diamond is an excellent electrical insulator, while graphite is a good conductor of electricity. This is due to the way the carbon atoms are arranged in each mineral.
Gold is primarily used in jewelry and electronics. It's both valuable and an excellent conductor of electricity.
Copper is usually used as it is a very good conductor of electricity, easy to extrude into wire and reasonably priced.
Until recently, diamond would have been the answer, but graphene films have even higher conductivity. But graphene would not (yet) be considered a native mineral. [Most probably]
Feldspar, the mineral, is not magnetic. Most, but not all, magnetic minerals contain iron.