As of 5.4 this is no longer working.
The Mantid Artifact Sonic Locator was introduced in 5.1, provided that you are exalted with the Lorewalkers, one Restored Artifact will get you a locator, good for one day. Having this in your inventory turns all digsites in Pandaria into Mantid dig sites. This is useful for getting Mantid Sky Reaver and Sonic Pulse Generator, excellent weapons for leveling your alts. Beyond this, there is another use that may or may not be intended. By having this item in your backpack, you can reset the dig sites in Tol'vir by zoning in and out. This is huge for completing your Tol'vir artifacts. Sometimes it might take a few zone in and outs to get it to work, but it'll save you a lot of time over having to fly all over Kalimdor hoping a Tol'vir dig site will pop next. Go solve those artifacts and get your Crawling Claw and Scepter of Azj'Aqir! This is also where you can learn Recipe:Vial of the Sands, but you need to be an alchemist.
The Mantid Artifact Sonic Locator was introduced in 5.1, provided that you are exalted with the Lorewalkers, one Restored Artifact will get you a locator, good for one day. Having this in your inventory turns all digsites in Pandaria into Mantid dig sites. This is useful for getting Mantid Sky Reaver and Sonic Pulse Generator, excellent weapons for leveling your alts. Beyond this, there is another use that may or may not be intended. By having this item in your backpack, you can reset the dig sites in Tol'vir by zoning in and out. This is huge for completing your Tol'vir artifacts. Sometimes it might take a few zone in and outs to get it to work, but it'll save you a lot of time over having to fly all over Kalimdor hoping a Tol'vir dig site will pop next. Go solve those artifacts and get your Crawling Claw and Scepter of Azj'Aqir! This is also where you can learn Recipe:Vial of the Sands, but you need to be an alchemist.