ラミアの鱗 / ラミアのうろこ / ラミアのウロコ [lamia no uroko] or 'lamia's scale(s)' in Japanese.
Final Fantasy III

Buy: - (sell: ? gil)
Drop: Black Flan, Crocotta, Djinn, Dread Knight, Red Marshmallow, Roper
Treasure: Tokkul
Type: Consumable
Effect: inflicts Confusion
Revenant Wings
Buy: 2,250 gil (sell: 1,125 gil)
Shop: Material Shop, chapter 8 onwards with over 500 materials obtained
Use: Earth Wand, Elfin Bow, Pyrowand, Red Halberd, Silver Staff
Obtain: mission 4-1 (reward 75% with Goblin Pouch, harvest 22%), A Savory Task (harvest 22%), The Sword in the Shell (harvest 22%), Isshu Monster Melee (reward 75% with Goblin Pouch, harvest 22%), Gugoza Falls Monster Melee (harvest 22%), Heaven's Vigil Summoning Melee (harvest 22%), Illusion's Home Monster Melee (reward 75% with Goblin Pouch, harvest 22%)
Description: Heat-resistant scales that melt when immersed in water
Other: mid-grade Solid Carapace
Grimoire of the Rift

Buy: - (sell: 60 gil)
Use: Paraiba Blade, Stinger, Round Shield
Reward: The Yellow Wings x2 (once), Blue King of Cinquleur x2 (once)
Type: Bone, Rank: —
Description: A smooth, white scale. Surprisingly beautiful, these are used to make a variety of accessories.
Final Fantasy Tactics S

Buy: - (sell: ? gil)
Use: Dagger
Obtain: Nation of Magick Nensa-Ramoi/Ruins of Old Nensa
Description: ?
Category: Item