Why is it impossible to contain gaseous iron in a glass container?

In its standard temperature and pressure, iron would exist as a solid. Therefore to make it into gas, we must heat it beyond its boiling point which is around 2,862°C. At that temperature, ordinary glass container would readily melt. Hence, it is impossible to contain gaseous iron in a glass container.

c- cold periods in earth's history during which glaciers covered much of the surface.

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