Cambrian Black Granite UK US Russia Imperial Exports India http://www.imperialexportsindia.com/granite.php Imperial Exports India is the manufacturer, supplier and Exporter of Cambrian Black Granite from Udaipur, Rajasthan, India. Black granite is most famous and an excellent stone used for residential and commercial purpose. Black Granite is used to make beautiful interior and exterior decorations. Cambrian granite is the one of the type of black granite.