Granite Farming?

I believe Stone Scale Kirins outside of Maatu Keep are a common farm for this. They drop granite and their Stone Horn drops salvage into granite as well. You're partly right, NM Kirin do drop more Granite (per salvage) in less time than HM Stoneys do (but no Charcoal or Rubies ) though their spawns in that location were greatly reduced so it's time to update your info...

The best point now requires a build that can take NecroticTraversal/ConsumCorpse along b/c you have to start in the Arborstone outpost and talk to the gate guard to leave on the gondola. You also need your heroes set up to kill 1 quickly without relying on line of sight skills or projectiles. Once you get down into the water, you flag your heroes back and just forget about them b/c they don't affect your drops once you get out of range of them. Infact the first thing you really wanna do is get over to the Shrine in the south-center for Faction bounty & 3+ pips of health regen. ...then go wild. There's atleast a dozen groups in that quadrant of the map.