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The index of mineral production in the mining and quarrying sector for September 2022, at 99.5 (base: 2011-12=100), is 4.6% higher than in September 2021. As per the provisional statistics of the Indian Bureau of Mines (IBM), the cumulative growth for the period April-September 2022-23 over the corresponding period of the previous year is 4.2%. Production levels of important minerals in September 2022 were: coal 580 lakh tonnes; lignite 27 lakh tonnes; natural gas (utilised) 2791 million cu. m.; petroleum (crude) 24 lakh tonnes, bauxite 1,667 thousand tonnes; chromite 116 thousand tonnes; copper conc. 10,000 tonnes; gold 92 kg; iron ore 166 lakh tonnes; lead conc. 22,000 tonnes; manganese ore 163,000 tonnes; zinc conc. 45,000 tonnes; limestone 305 lakh tonnes; phosphorite 150,000 tonnes; magnesite 10,000 tonnes, and diamond 70 carat. Important minerals showing growth during September 2022 over September 2021 include: phosphorite (87.6%); diamond (37.3%); copper conc (18.5%); coal (12.1%); iron ore (9.1%); bauxite (5.5%); and limestone (4.7%). Important minerals showing negative growth include: natural gas (U) (-1.7%); petroleum (crude) (-2.3%); manganese ore (-4.7%); magnesite (-15.3%); chromite (-19.6%); gold (-20.7%); lignite (-22.0%); lead conc (-30.1%); and zinc conc (-66.1%). See also: No coal mining licences issued by Meghalaya, HC toldCentre to hike import duties