In the above map, the black marks show the distribution of

1. The question asks to identify the mineral whose distribution in India is shown by the black marks on the provided map. 2. (Assuming the map highlights the mica belts). India is a major producer of Mica, particularly sheet mica. 3. The key distribution areas for Mica are the Koderma-Gaya-Hazaribagh belt spanning Jharkhand and Bihar, the Nellore mica belt in Andhra Pradesh, and areas in Rajasthan. 4. If the black marks on the map correspond primarily to these regions, then the mineral shown is Mica. 5. Limestone is very widespread. Gypsum is concentrated mainly in Rajasthan. Asbestos distribution is limited and scattered.