Virtually any material will creep upon approaching its melting temperature. This interferes with crystallization and lowers the polymer's melting temperature. The solid has a low melting and boiling point. Phosphate glasses with low melting temperature were developed. They exhibit low melting and boiling points. This is achieved by increasing the internal energy of the ice beyond the melting point. Ablation of ice refers to both its melting and its dissolution. Magma composition can be determined by processes other than partial melting and fractional crystallization. The melting and boiling points depend on pressure. Pegmatite may be produced by low degrees of partial melting of the crust. There is one significant difference between boiling points and melting points. The butanol isomers have different melting and boiling points. Plant growth occurs during the time of snow melting. Loss of glacier mass is caused by both melting and sublimation. Smelting involves more than just melting the metal out of its ore.