Details
Blocks of Quartz (also known as Quartz Blocks) are decorative blocks crafted from Nether Quartz.
Like Sandstone, they can only be further crafted into more decorative forms.
Pocket Edition : Their ingredients appear next to powered nether reactors.
Pocket Edition : To craft quartz blocks in Pocket Edition, you need to use a Stonecutter rather than a Crafting Table.