The gorm are indiscriminate in what they consume, so long as it does not contain anima. A gorm queen that has lived for many generations may have any number of indestructible artifacts lodged within her belly. For this reason, sifting through a queen's carcass is not unlike treasure hunting for us.
One of the largest queens is currently consuming Tirna Scithe. She surely is bloated with valuables. Should you come upon anything particularly unusual, know that we will compensate you in kind.