बॉक्साइट

thumb|250px|b aauksait b aauksait ek khanij hai. yah patthar sarvapratham phraans mean lais bauks ke nikat mila tha. isi adhar par is khanij ka nam b aauksait p da. isi khanij se vishv ka adhikaansh ailuminiyam nikala jata hai. isaka rang safed ya bhoora hota hai. samanyat: isamean lohe ka aansh vidyaman rahata hai. lohe ki matra par nirbhar isaka rang gulabi ya lal hota hai. khadan se nikalane par yah itana mulayam hota hai ki hath se toot jata hai, par vayumandal ke sanpark mean ane par isaki kathorata badh jati hai. isaki akriti matar ke danoan ke saman hoti hai, at: isako pahachanane mean kabhi kathinaee nahian hoti. isaka apekshik ghanatv 2.0 se 2.6 tak hai. b aauksait ka nirman prithvi ki satah par ya usake nikat mitti tatha ailuminiyam, agney shilaoan ke vighatan se hota hai. b aauksait patharoan ke oopari bhagoan mean, patalakar paha diyoan mean tatha choone ki shilaoan mean aniyamit samudayoan mean milata hai. bharat mean isake nikshep bihar, madhy pradesh, u disa, madras tatha kashmir mean haian.

prapti sthan

ailuminiyam ki prapti ka srot hone ke karan b aauksait ki ganana mahattvapoorn khanijoan mean ki jati hai. isaki prapti lauh bhasmoan ke roop mean hoti hai jinamean pramukh haian- bokamait, dayasphor tatha gibarait. bharat mean milane vale ye sabhi bhasm laitarait prakar ke haian, jinamean lal evan pila lauhaansh adhik matra mean mila rahata hai. isaka kul sanchit bhandar 303.7 karo d tan anumanit kiya gaya hai. inamean se 246 karo d tan aise haian, jinhean nikala ja sakata hai. isaka pramukh utpadak rajy jharakhand hai jahaan raanchi evan palamoo ziloan ke ooparaghat tatha khuriya kshetroan mean isaki mahattvapoorn khane sthit haian. chhattisagadh ke saraguja, durg, bilasapur adi ziloan mean, madhy pradesh ke shahadol, balaghat, jabalapur adi ziloan mean, u disa ke kalahaandi tatha sambalapur ziloan mean, gujarat mean saurashtr ke dhaangarava di namak sthan par khean da, b dodara, rajapipala adi ziloan mean, maharashtr ke pune, satara, kolhapur, kolaba, thane evan ratnagiri ziloan mean, tamilanadu ke nilagiri ke samipavarti evan karnan nadi ki ghati mean, palani paha diyoan ke kshetr mean, shevaray paha di kshetr mean yarakud ke samip tatha kolamataee paha diyoan par, karnatak mean belagaanv zile mean siddh paha d, jambotibeten kshetr, kasarasada paha diyaan, kalanandi kshetr tatha bababoodan ki paha diyaan adi kshetroan mean taanbe ka utkhanan kiya jata hai. 2006-07 ke dauran mean kul 130.75 lakh tan b aauksait ka utpadan hua.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh