I think in warmer because we need to put it on fire to make it a jewelry.
Warmer because heat speeds up its metabolism
they grow faster on charcoal
No, the alum grows faster.
warm
the sugar Cristal's grow faster in refrigerated areas
It depends on the material. Ice is a crystal, so is diamond.
salt
They should grow faster in warmer temperatures
i would say warmer, but that is just me!
sugar grew faster that all i know
In presence of salt the crystals grow faster because the solubility of salt decreases the solubility of any other compound in water.
Hair grows faster in warmer climates.