Gives you access to the 'minerals' kit, which contains:

• 1x Diamond Block
• 1x Emerald Block
• 2x Iron Block
• 2x Gold Block
• 4x Coal Block
• 8x Redstone Block
• 16x Lapis Block
• 16x Quartz Block

Acquire the kit using the command: /kit minerals, it can be used once every 24 hours.