In which one of the following minerals, India leads in production in the world?

Explanation

During the period of the question, India was the top producer of sheet mica. According to World Mineral Production, 2019–2023, in 2023 the largest producer of mica was China, the largest producer of mined copper was Chile, the largest producer of gypsum was the United States of America, and the largest producer of iron ore was Australia.