<P> Makrana marble is a type of white marble of high quality, popular for use in sculpture and building decor . It is mined in the town of Makrana in Rajasthan, India, and was used in the construction of several iconic monuments such as the Taj Mahal in Agra and the Victoria Memorial in Kolkata . </P> <P> In the Makrana area, marble is found as five steeply - dipping bands . They form part of the Ajmer Formation of the Delhi Supergroup, which is a sequence of sedimentary rocks that was deposited in the Delhi Basin during the Proterozoic . About 1450 Ma (million years ago) these rocks were affected by the Delhi Orogeny, causing the metamorphism that transformed the original limestones to marble and the folding that caused the steep dip and the current outcrop pattern . </P>

Which type of marble used in taj mahal