Notes: Used to make molten glass. Cook the seaweed on a range to get soda ash. Then use the soda ash and a bucket of sand on a furnace to get molten glass. Seaweed also spawns on the north-west corner Entrana, Northeast of Fremennik, all over Karamja, and can be caught while Big Net fishing. Seaweed can also be bought for 2 gold by trading one of the 'Trader Crewmember' just south east bridge of Port Khazard.