Make Emerald and Ruby usable as tools and armor. Emerald and Ruby also have special effects.

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Armor and Tools

Basic Emerald and Emerald

Basic Ruby and Ruby

Ruby & Emerald Block

Toggle on/off Special Effect

Tools Effect [V] Armor Effect [B]

Tools with special effect

Emerald

Emerald Axe

Tree Chopper

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Emerald Hoe

Auto-Replant

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Emerald Pickaxe

Auto Smelt

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Emerald Shovel

Anti-Gravity

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Emerald Sword

Shockwave

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Emerald Horse armor

Ruby

Ruby Axe

Tree Chopper + Auto Place

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Ruby Hoe

Auto-Replant + More Harvest

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Ruby Pickaxe

Auto Smelt + Vein Mining

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Ruby Shovel

Anti-Gravity + Fast Digging

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Ruby Sword

Shockwave + Lighting Slash

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Ruby Horse armor

New Item

Apple, Carrot and Totem

I highly recommend you to use the REI mod