Steel Scales[]
The Steel Scales are a very common drop from Silverfish, elevating the value of strongholds and their silverfish spawners. They are also obtained through melting down chain armor in a furnace, if the config option is enabled.
They are used to brew the vanilla Potion of Resistance. The hierarchy is similar to that of all other potions: redstone elongates, Pure Tear elongates the elongated potion, glowstone amplifies, Plagued Tear amplified the amplified potion.