Harmonic dust

Harmonic dust is an item available from Prifddinas. It is obtained by pickpocketing an Ithell worker or by playing a harp in the Ithell area of the city.

Harmonic dust is used to make crystal tools and equipment by Crystal Singing. To make the items you need either a crystal weapon seed, crystal armour seed, or crystal tool seed along with a certain amount of harmonic dust. Use the singing bowl in the Ithell area and sing the item that you want. This gives Smithing experience equal to the amount of dust used. You can also pay Eluned or Ilfeen 1,000,000 coins to make any crystal item for you (except the pickaxe and hatchet).

With 80 experience for each dust every third second the experience rate is a maximum of 96,000 per hour in Crafting. This can however be boosted with artisan's outfit to boost the experience rates to just over 100,000 experience per hour. With tuning and a possibility to not get any dust the actual experience gain each hour is considerably lower. You also get 50 experience in Construction for each 10% the harp is out of tune.

If you give 4,000 harmonic dust to Lady Ithell, she can convert a dragon hatchet or dragon pickaxe to a crystal hatchet or crystal pickaxe, respectively. The dragon items can be on your toolbelt, and an imcando pickaxe also works, although it will lose its special effect.