granite slab

Product Details:

"Black granite" is commonly seen in commercial rock, but it is not granite at all. As said above, granite must be at least 20% quartz, which means an all black rock is not a granite. Most commonly, black granite is in fact gabbro, a mafic intrusive igneous rock similar to basalt.

Features:

• Thickness: 15mm- 17mm
• Color: Black