ग्रेफाइट
thumb|250px|grephait grephait ko 'kala sisa' tatha 'plabago' bhi kaha jata hai. grephait karban ka khanij hai. grephait ki rasayanik prakriti san 1779 mean ke. dabloo shole ne jnat ki aur isaka namakaran san 1789 mean e. ji. varnar ne kiya. grephait shabd grik ke shabd grephi se liya gaya hai, jisaka arth hai 'maian likhata hooan'. kayantarit shailoan mean milane vali karbanik sanrachana mean grephait ki prapti hoti hai. grephait ke sath silika evan siliket jaisi ashuddhiyaan bhi payi jati haian. grephait ka upayog pensiloan ki led banane tatha paramanu shakti ke riektaro mean mandak ke roop mean kiya jata hai.
utpadan
grephait ke pramukh utpadak rajy haian- jharakhand mean sokara, khanadih tatha rajahara kshetr, u disa mean kalahaandi baboopali, deangasaragi, viliyanago da, akhamalik kshetr tatha bolangiri, sammalapur, koraput, phoolabani tatha andhr pradesh mean rampa, chodvaram[1], raiandi bodiyar tatha haripuramh kshetr[2], khamamet [3], narasipattanam [4], saloor[5] tatha narasaropet [6]. arunachal pradesh[7], jammoo kashmir [8], madhy pradesh[9], keral [10] tatha uttar pradesh mean bahut kam matra mean grephait ka utpadan hua.
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tika tippani aur sandarbh
- ↑ poorv godavari
- ↑ pashchim godavari
- ↑ khammam
- ↑ vishakhapatanam
- ↑ shrikakulam
- ↑ guantoor
- ↑ lohit simant kshetr
- ↑ u di kshetr
- ↑ betul
- ↑ travanakor
bahari k diyaan
sanbandhit lekh