Earth Treasures: Granodiorite Rock
By Chisom Ibemere
Granodiorite is an igneous rock and from the granite family. Its formation occurs from slow cooling and solidification of magma deep within the Earth’s crust.
Its name “granodiorite” is gotten from the combination of “granite” and “diorite,” as it has properties of both rocks. It has been used in various historical and architectural applications throughout human history.
It is durable and strong and has been used for centuries as a construction material. It is commonly used as a dimension stone in buildings, monuments, bridges, and paving stones.
It is resistance to weathering and erosion which makes it ideal for outdoor application. It has a fine-grain and is able to hold intricate shapes as it is a popular material for sculptures. It has been used by ancient civilizations to create statues and carvings.
Granodiorite’s hardness and resistance to heat and scratching make it suitable for kitchen countertops and flooring tiles.
It is composed of plagioclase feldspar, quartz, and biotite or hornblende and has a granular texture and may contain small amounts of other minerals such as muscovite, amphibole, or pyroxene.
Granodiorite is typically gray or light-colored, but also has pink to black, depending on the specific mineral composition. It is a relatively hard rock with a Mohs hardness of 6 to 7.
This makes it resistant to scratching and suitable for various applications. It is highly resistant to weathering, erosion, and chemical attack. It is known for its long-lasting nature and ability to withstand outdoor conditions.
Granodiorite is used in construction worldwide and Its global value is significant due to its various applications in architecture and infrastructure.
The value of granodiorite can vary depending on factors such as quality, color, availability, and demand in the construction industry. As granodiorite is a relatively common rock, its price is generally lower compared to rare or exotic stones.