You cannot. Unless you have a really big machine that can separate ionic compounds and take the salt away from the water...
It's not that only alum makes big crystals.. There are so many compounds that can make big crystals. Even Sodium Hydroxide makes very good and big crystals. For crystals you need a uniform arrangement of atoms in space. For big crystals all you need is patience. The slower is the crystallization process the bigger crystals are formed. What industries do is called seeding. They make a good concentrated solution of the compound whose crystals are needed and then they put a crystal of the same compound in the solution. The new crystals form and attach to the crystal making quick and big crystals.
There are different minerals in different crystals which make them different colors. And "imperities"
It is a physical change, as salt (a solid solute) comes out of the solution as the water evaporates.
it depends on how big you want it. if u only do the process once then only a couple of hours
You could grind it into very fine crystals.
There are many ways to make crystals from scratch.
All salts make crystals.
The water evaporates but the salt does not. This leaves behind crystals of salt on the surfaces.
what do you need to make a borax crystals
to make crystals grow
No but you can make Saltwater edible using the Reverse Osmosis Method.
Sure, because crystals make rainbows.
watersalt
Yes, saltwater makes mascara run faster. Just like when you cry, those tears are a type of saltwater.
do sugar crystals form on straws
the formation of crystals will be vary on the surface on which they form, at least in a macro fashion (that is to the naked eye). At a micro (atomic) level the crystals are virtually identical, with the exception of impurities.
the formation of crystals will be vary on the surface on which they form, at least in a macro fashion (that is to the naked eye). At a micro (atomic) level the crystals are virtually identical, with the exception of impurities.