Drops and their uses

[Onikami]

Colassal Skull
Found: Windurst, Beaucedine
Usage: Used in recipe Chronos Tooth (100 Bonecraft)
Value: Sellable at Auction House
Notes: Chronos Tooth is required to upgrade Relic Axe and Relic Horn

Fresh Orc Liver
Found: Sandoria, Beaucedine
Usage: Used in recipe Cantarella (99 Alchemy)
Value: Sellable at Auction House
Notes: Cantarella is required to upgrade Relic Dagger

Giant Frozen Head
Found: Sandoria, Beaucedine
Usage: Used in recipe Mammoth Tusk (94 Bonecraft)
Value: Sellable at Auction House
Notes: Mammoth Tusk is required to upgrade Relic Horn and Relic Scythe

Goblin Grease
Found: Jeuno, Beaucedine
Usage: Used in recipe Marksman's Oil (95 Alchemy)
Value: Sellable at Auction House
Notes: Marksman's Oil is required to upgrade Relic Gun

Griffon Hide
Found: Sandoria, Beaucedine
Usage: Used in recipe Griffon Leather (97 Leathercraft)
Value: Sellable at Auction House
Notes: Griffon Leather is required to upgrade Relic Blade and Relic Knuckles

Lancewood Log
Found: Windurst, Beaucedine
Usage: Used in recipe Lancewood Lumber (99 Woodworking)
Value: Sellable at Auction House
Notes: Lancewood Lumber is required to upgrade Relic Bow, Relic Lance, and Relic Staff

Relic Iron
Found: Windurst, Beaucedine
Usage: Used in recipe Relic Steel (97 Smithing)
Value: Sellable at Auction House
Notes: Relic Steel is required to upgrade Ihintanto and Ito

Slime Juice
Found: Bastok, Beaucedine
Usage: Used in recipe Marksman's Oil (95 Alchemy)
Value: Sellable at Auction House
Notes: Marksman's Oil is required to upgrade Relic Gun

Sparkling Stone
Found: Bastok, Jeuno, Sandoria, Windurst, Beaucedine
Usage: Used in recipe Koh-I-Noor (22 Goldsmithing - HQ3)
Value: Sellable at Auction House
Notes: Koh-I-Noor is required to upgrade Relic Knuckles and Relic Sword

Wootz Ore
Found: Bastok, Beaucedine
Usage: Used in recipe Wootz Ingot (99 Smithing)
Value: Sellable at Auction House
Notes: Wootz Ingot is required to upgrade Relic Bhuj and Relic Maul

Gold Beastcoin
Found: Bastok, Jeuno, Sandoria, Windurst, Beaucedine
Value: Sellable at Auction House
Notes:

Infinity Core
Found: All dynamis zones
Value: Sellable at Auction House
Notes: Used with strange apparatus's found in various dungeon zones

Mythril Beastcoin
Found: Bastok, Jeuno, Sandoria, Windurst, Beaucedine
Value: Sellable at Auction House
Notes:

Ginuva's Theory
Found: Beaucedine, Xarcabard
Value: EX/RARE (can not sell to npc)
Notes: Usable experience point scroll


Necropsyche
Found: Xarcabard
Value: EX/RARE (Sellable to NPC for around 10k)
Notes: Used in last stage of relic weapon upgrade

Schultz Stratagems
Found: Xarcabard
Value: EX/RARE (can not sell to npc)
Notes: Usable experience point scroll


Attestations:
Attestation of Accuracy
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Gun

Attestation of Bravery
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Axe

Attestation of Celerity
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Dagger

Attestation of Decisiveness
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Ito

Attestation of Force
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Bhuj

Attestation of Fortitude
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Lance

Attestation of Glory
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Sword

Attestation of Harmony
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Horn

Attestation of Legerity
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Ihintanto

Attestation of Might
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Knuckles

Attestation of Righteousness
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Blade

Attestation of Sacrifice
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Maul

Attestation of Transcendence
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Bow

Attestation of Vigor
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Scythe

Attestation of Virtue
Found: Beaucedine
Value: EX/RARE (can not sell to npc)
Notes: Used for third upgrade of Relic Staff

*Information pulled from NoSephiroth ls website