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|Occurrence of granite|. Granite occurs as relatively small, less than 100 km2 stock-like masses and as large batholiths often associated with orogenic mountain ranges and is frequently of great extent. Small dikes of granitic composition called aplites are associated with granite margins. rock consisting of equal proportions of orthoclase and plagioclase plus quartz may be considered a quartz monzonite. A granite containing both muscovite and biotite micas is called a binary granite.
Black granite can be marbled in other colors such as white or rose. Black granite is mined in Sweden, South Africa, India or Australia. Azul or Blue Granite. Azul or blue granite is so named because it has blue in the granite stone. The exact name of the stone depends on the country of origin.