Ambaji Marble
Recently, the Ambaji Marble has been awarded the Geographical Indication (GI) tag for its high-quality white stone.
About Ambaji Marble
Ambaji Marble is a premium, highly durable natural stone from Gujarat, India, celebrated for its pristine white color, fine grain texture, and long-lasting shine. It recently received a Geographical Indication (GI) tag, recognizing its unique origin and quality.
Key Characteristics and Properties
- Appearance: Ambaji marble is primarily a brilliant to milky white color, often featuring subtle grey or beige natural veining and a fine, consistent texture. This gives it a luminous, elegant aesthetic.
- Durability and Composition: It is a dense, metamorphic rock composed mainly of calcium carbonate and silicon oxide. It is known for its exceptional hardness and resilience, reportedly outlasting other historical stones, such as those of the Taj Mahal.
- Maintenance: While durable, the marble is relatively low-maintenance, requiring only regular cleaning with mild soap and water. Annual sealing is recommended to maintain its shine and resistance to moisture.
- Heat Resistance: Ambaji marble absorbs less heat and remains cool even under direct sun exposure, making it suitable for various applications.
Formation of Ambaji Marble
Ambaji Marbleis a metamorphic rock formed when a pre-existing sedimentary carbonate rock, primarily limestone, is subjected to intense heat and pressure deep within the Earth's crust over millions of years.
This geological transformation process, known as metamorphism, involves several key stages:
- Original Sedimentation: The process begins with the accumulation of calcium carbonate (CaCOβ) from the skeletal remains of marine organisms and other sediments in shallow, humid ocean environments. Over time, these layers compact to form limestone.
- Metamorphism: The limestone is buried and exposed to the high temperatures and pressures typically found at convergent plate boundaries or where a hot magma body intrudes the adjacent rock (contact metamorphism).
- Recrystallization: Under these extreme conditions, the original calcite mineral grains in the limestone recrystallize and grow into a dense, interlocking mosaic of larger calcite crystals. This process obscures the original sedimentary structures and fossils.
- Purity and Veining: The signature pristine white color of Ambaji marble is the result of metamorphism of a very pure limestone protolith (the original rock). Any subtle grey or beige veins or swirls are due to mineral impurities, such as clay, iron oxides, or graphite, that were present in the original limestone layers and mobilized during the heat and pressure.
- Geological Context: The marble deposits in the Ambaji region of Gujarat are part of the ancient Delhi Supergroup of meta-sedimentary rocks, which were intruded by granitic rocks (known as Erinpura granites) around 860-730 million years ago, contributing to the metamorphic conditions necessary for marble formation.
Common Applications
Ambaji marble's versatility and timeless appeal make it a popular choice for a wide range of residential and commercial projects.
- Flooring: Highly recommended for flooring in homes, hotels, and temples due to its durability and attractive finish.
- Countertops and Vanities: Its heat and scratch resistance makes it ideal for kitchen countertops and bathroom vanity tops.
- Architectural Accents: It is also used for wall cladding, staircases, reception desks, and external facades.
- Sculpture and Monuments: Historically and culturally significant, it has been used in the construction of numerous temples, palaces, and monuments, including the famous Ambaji Temple and the Dilwara Jain Temple.
Download Pdf