Indian Black Stone is a natural granite (granite), which is the product of the process of accumulating lava under the earth's crust for a long time. Valuable structural properties such as strength, hardness, gloss, high color uniformity. Due to the strong structure and high durability of natural granite, Indian Black Stone is often used for works that are subject to many external forces such as: facades, countertops, stairs, etc. floors, toilets... Especially Indian Black Stone is extremely popular for making stairs and steps.