Malad Stone
From bombaywiki
or the Trachyte rock is a volcanic rock, popularly known as the Malad stone and is yellow in colour and was used for the monuments in south Mumbai during the late nineteenth centruy. It was quarried from Kharodiwadi and Bandongri in Malad. Trachyte rocks form the facade of the city’s neo-Gothic buildings such as the CST station, Rajabai Tower, the BMC headquarters, the Esplanade court and several other buildings in Fort. The Bandongri hill, which is formed of the same trachyte rock was cut and the Western Express Highway passes through it near the Times of India Press at Malad-Kandivali.