Icebergs are always made out of fresh water. True icebergs are glacier fragments that have fallen into the sea. Glaciers are composed of fresh water, and thus true icebergs are too. Additionally, ‘sea ice’ that forms from frozen sea water is also fresh- this is because the salt is excluded from the ice crystal lattice that develops when water freezes.
Ice is a mineral just as much as Quartz is. Ice is a naturally occurring compound with a defined chemical formula and crystal structure, thus making it a legitimate mineral. Its only limitation, in comparison to all other minerals, is that it is not stable at room temperature.
In 1959, a Norwegian insulation company took on the challenge from a radio station of driving a truck carrying three tons of ice from the arctic circle to the equator. The ice only lost 11% of its mass during the 27 day long journey.
We are still making scientific discoveries about water because it is so bizarre. Water ice has 15 different phases, and there is now a strange, “quasicrystal” form when the ice is only 2 molecule layers thick.
An award winning middle schoolers science project showed that on average 70% of the time ice from fast food restaurants is dirtier than toilet water.
A Norwegian company in 1959 drove a three-ton block of ice from the Arctic Circle to the Equator, without refrigeration. They lost only 336 kg.