| Aerated sediment [] | 1 | Varies |
| Ancient casket [] | 100 | 6/81 |
| Ancient gravel [] | 1 | Varies |
| Antiquarian (Equilibrium League) (Equilibrium Leagues) [] | 5–15 | 1/45 |
| Archaeologist (Archaeology Campus) [] | 1 | 150/20,000 |
| Archaeologist (Everlight) [] | 1 | 150/24,000 |
| Archaeologist (Infernal Source) [] | 1 | 150/26,000 |
| Archaeologist (Kharid-et) [] | 1 | 150/20,000 |
| Archaeologist (Senntisten) [] | 1 | 150/22,000 |
| Archaeologist (Stormguard Citadel) [] | 1 | 150/28,000 |
| Archaeologist (Warforge) [] | 1 | 150/26,000 |
| Archaeology professor (Archaeology Campus) [] | 1 | 75/10,000 |
| Archaeology professor (Everlight) [] | 1 | 75/12,000 |
| Archaeology professor (Infernal Source) [] | 1 | 75/13,000 |
| Archaeology professor (Kharid-et) [] | 1 | 75/10,000 |
| Archaeology professor (Senntisten) [] | 1 | 75/11,000 |
| Archaeology professor (Stormguard Citadel) [] | 1 | 75/14,000 |
| Archaeology professor (Warforge) [] | 1 | 75/13,000 |
| Big High War God shrine [] | 1 | 2/10 |
| Castra debris [] | 1 | 1/5 |
| Cathedral debris [] | 1 | 2/5 |
| Divine geode (Equilibrium Leagues) [] | 5–15 | 1/45 |
| Earthen clay [] | 1 | Varies |
| Everlight Dig Site (research) [] | 1 | Common |
| Fiery brimstone [] | 1 | Varies |
| Flight research debris [] | 1 | 3/10 |
| Fort debris [] | 1 | 2/10 |
| Infernal art [] | 1 | 2/10 |
| Infernal Source Dig Site (research) [] | 1 | Common |
| Inquisitor remains [] | 1 | 3/10 |
| Kharid-et Dig Site (research) [] | 1 | Common |
| Legionary remains [] | 1 | 3/10 |
| Lodge art storage [] | 1 | 1/5 |
| Material cache (samite silk) [{'content': 'Only for successful excavations.'}] | 1 | Always |
| Optimatoi remains [] | 1 | 3/10 |
| Praetorian remains [] | 1 | 2/10 |
| Saltwater mud [] | 1 | Varies |
| Senntisten Dig Site (research) [] | 1 | Common |
| Stadio debris [] | 1 | 2/10 |
| Stockpiled art [] | 1 | 1/5 |
| Stormguard Citadel Dig Site (research) [] | 1 | Common |
| Tailory debris [] | 1 | 3/10 |
| Trainee archaeologist (Archaeology Campus) [] | 1 | 125/20,000 |
| Trainee archaeologist (Everlight) [] | 1 | 125/24,000 |
| Trainee archaeologist (Infernal Source) [] | 1 | 125/26,000 |
| Trainee archaeologist (Kharid-et) [] | 1 | 125/20,000 |
| Trainee archaeologist (Senntisten) [] | 1 | 125/22,000 |
| Trainee archaeologist (Stormguard Citadel) [] | 1 | 125/28,000 |