How to use NEW Emerald Block - Minecraft 1.6

SkyBlock http://www.Uberminecraft.com Minecraft Server
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In this video you will learn:
minecraft 1.4.2 update
new features in minecraft 1.5.2
emerald in minecraft 1.6
how to use emerald in minecraft 1.6
What is emerald minecraft 1.6
what is emerald used for in minecraft
why wont the temerald work in minecraft 1.6
tips for the emerald in minecraft
emerald in minecraft not working minecraft 1.6
minecraft new update minecraft 1.6
best features of new minecraft update
how to trade with emeralds minecraft 1.6
how to trade with villagers minecraft 1.3.1
why wont villagers accept my trade minecraft 1.3.1
What to craft with emerald