Craft a Crying Obsidian [Forge]

 Step 1

 Add in the middle of the crafting table obsidian block , and in all sides lapis lazuli , and in all corners cyan dye. like in the picture below.

  Step 2

 Smelt the lapised Obsidian. like in the picture below.

 Step 3

 Add Redstone to the smelted lapised obsidian in the smithing table. like in the picture below