In order to make these runes, you will need to bring the Talisman and Rune of one composite element to the Altar of the other composite element. You will also need an equal number of pure essences. Taking the example of a 'Lava' rune which is made from Earth and Fire runes, you will need to go to either the Earth altar or the Fire altar. * Going to the Earth altar, you will need to bring a Fire talisman, and an equal amount of Fire runes and blank essences. * Going to the Fire altar, you will need to bring an Earth talisman and an equal amount of Earth runes and blank essences. Once you are at the altar, use your talisman on it as usual and you will convert your composite element runes and your essences into an equal number of combination runes. Doing this will use up your original runes, your essences, and your talisman! Below is a table showing what you need to bring for each combination rune when going to specific altars http://www.tip.it/runescape/?page=runec ... .htm#combo