Glassblowing is a supplementary skill for Grandmaster Alchemists, its does not cost any skill points, and has no effect on the skill cap. To learn how to craft glass a GM Alchemist must read the book “Crafting Glass with Glassblowing” which can be bought from Gargoyle Alchemists in Royal City, Ter Mur at a cost of about 10,000 gold. The tools required, blowpipes can also be bought from this individual. In addition you must be close to a forge to create glass items. Blow pipes wear out, like most tools. You will also require sand, which is mined by grand master miners on beaches. Only weapons made with Glassblowing may carry a maker’s mark.
The special ingredient, ethereal sand was obtained from Corgul the Soulbinder upon his death during the Treasures of the Sea, Forsaken Foes event. A portion of ethereal sand also became available for purchase at Minoc Mining Cooperative at his demise.