Stock Photo - Graphite - Sky Farm - Northfield - Massachusetts - USA - Native element-carbon - Used as the ´lead´ in pencils - Used as lubricants and in nuclear reactors - Also used for lamps batteries and brushes for electric motors.

Stock Photo: Graphite - Sky Farm - Northfield - Massachusetts - USA - Native element-carbon - Used as the 'lead' in pencils - Used as lubricants and in nuclear reactors -.

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