cent followed by Madhya Pradesh (18 per cent), Tamil Nadu (16 per cent), Jharkhand (9 per
      cent) and Rajasthan and Gujarat (8 per cent each). Gradewise, refractory-plastic grade accounts
      for 37 per cent followed by refractory-unspecified (14 per cent) and refractory-nonplastic/semi-
      plastic (16 per cent). The remaining 33 per cent are of others, unclassified and not known grades.
           As per the UNFC system, the total resources of fluorite in the country in 2015 are estimated
      at 18.18 million tonnes. Out of these, 0.29 million tonnes are placed under reserves category. By
      states, Gujarat accounts for 66 per cent of the total resources having 12 million tonnes, followed
      by Rajasthan with 5.24 million tonnes (29 per cent), Chhattisgarh 0.55 million tonnes (3 per
      cent) and Maharashtra 0.39 million tonnes (2 per cent). Gradewise, the resources are classified
      into marketable grade which accounted for 81 per cent of the total resources, followed by low
      grade (17 per cent) and unclassified grade (2 per cent).
           As per UNFC system, the total resources of mineral gypsum in India in 2015 are estimated
      at 1,330 million tonnes of which 37 million tonnes have been placed under ‘reserves’ and 1,293
      million tonnes under ‘remaining resources’ category. Of the total resources, fertilizer/pottery
      grade accounts for about 80 per cent and cement/paint grade 13 per cent. The unclassified and
      not-known grades together account for 5 per cent resources. The remaining two percent of
      resources is shared by surgical plaster and soil reclamation grades. By States, Rajasthan alone
      accounts for 81 per cent resources and Jammu & Kashmir 14 per cent resources. The remaining
      5 per cent resources are in Tamil Nadu, Gujarat, Himachal Pradesh, Karnataka, Uttarakhand,
      Andhra Pradesh and Madhya Pradesh.
           Graphite occurrences are reported from various states but the deposits of economic
      importance are located in Andhra Pradesh, Jharkhand, Karnataka, Kerala, Odisha, Rajasthan and
      Tamil Nadu. As per the UNFC system, the total resources of graphite in 2015 are placed at about
      194.89 million tonnes, comprising 7.96 million tonnes in the reserves category and 186.93
      million tonnes under remaining resources category. Arunachal Pradesh accounts for 37 per cent
      of total resources, followed by Jammu and Kashmir (32 per cent), Odisha (10 per cent),
      Jharkhand (9 per cent) and Tamil Nadu (4 per cent). However, in terms of reserves, Jharkhand
      has leading share of about 52 per cent followed by Tamil Nadu 41per cent.
           Ilmenite and rutile along with other heavy minerals are important constituents of beach sand
      deposits found right from Ratnagiri coast (Maharashtra) in the west to Odisha coast in the east.
      These minerals are concentrated in Kerala, Tamil Nadu, Odisha and Andhra Pradesh. As per the
      UNFC system, the total resources of ilmenite in 2015 are estimated at 355.48 million tonnes
      (including leucoxene), inclusive of indicated, inferred and speculative categories.
           China clay resources in the country as per UNFC system in 2015 have been placed at
      2,941.25 million tonnes. The reserves constitute only about 8 per cent of the resources at 229.47
      million tonnes. The resources are spread over in a number of states of which Kerala holds about