Is members only: trueBuy limit: 100Item JSON: {"edible":"no","release_date":"18 August 2014","examine":"This looks valuable.","tradeable":"yes","weight":0.002,"value":400000,"release_update_post":"Soul Reaper","destroy":"Drop","lendable":"no","disassembly":"yes","gemw":{"name":"Hydrix","limit":100},"id":"31855","highalch":160000,"members":"yes","equipable":"no","bankable":"yes","name":"Hydrix","death":"reclaimable","stacksinbank":"yes","stackable":"no","noteable":"yes"}
A hydrix is a gem made by cutting an uncut hydrix with a chisel at level 79 Crafting, giving 197.5 experience. It is used with a gold bar to make hydrix jewellery at a furnace, currently the most powerful jewellery in the game.
It can also be cut further into hydrix bolt tips, but it is not recommended as this would result in a massive loss; hydrix bolt tips are easily obtained from drops and other sources.
Prior to 17 August2015, all enchanted hydrix jewellery degraded to dust. This was changed to them degrading to a broken state instead.
Hydrixes and onyxes are the only gems whose alchemy value decreases after being cut.
Hydrix appears to be a portmanteau of Hydra and Nix, the second- and third-largest moons of Pluto. Pluto itself being named after the god of the Underworld - the hydrix gem only being obtainable in Gielinor's Underworld.