राजस्थान में विस्तृत रूप से प्राप्य अज्वलित ईंधन खनिज है - - The widely available non-burning fuel mineral in Rajasthan is - Rajasthan Me Vistrit Roop Se prapya Ajvalit Indhan Khanij Hai - Rajasthan GK in hindi, Mineral Resources of Rajasthan Abhrak question answers in hindi pdf Gypsum questions in hindi, Know About Lignite Rajasthan GK online test Rajasthan GK notes in hindi quiz book Volestonite
अभ्रक