This item is classified as Ore and can usually be found mining in caverns or rock throughout Hyrule in Zelda: Tears of the Kingdom. Ore items often boast a high sale value over other items in-game. But more importantly, they either substantially boost weapon damage or offer offer elemental attacks when fused with any particular weapon.

When fused with a weapon it gives the following Attack Power Bonus:

• Sword: +1 Attack Power.
• Spear: +1 Attack Power.
• Arrow: +1 Attack Power.

When fused to a weapon, Ruby will enable the weapon to emit a Fire Burst projectile.

It can be used as an ingredient to cook the following meals:

• Rock-Hard Food

It can be used as an material to upgrade the following armor:

• Cap of the Hero
• Ruby Circlet
• Snowquill Headdress
• Snowquill Trousers
• Snowquill Tunic
• Trousers of the Hero
• Tunic of the Hero
• Vah Rudania Divine Helm

Where to Get Ruby in TotK

Ruby can be found as a potential drop from any of following locations or enemies throughout Hyrule:

• Spiny Bone
• Igneo Talus
• Rock
• Ore Deposit
• Igneo Talus (Crystal)
• Battle Talus
• Stone Talus
• Iron Box
• Igneo Pebblit
• Rare Ore Deposit
• Stone Talus (Crystal)
• Molduga
• Blue Rock

This item can be purchased from the following shops:

• Bladon's YunoboCo Mineral Market, located in Eldin
• Cara's Starlight Memories, located in Gerudo Town