You can refill them and I encourage you to do so. This video explains how to refill the pencil, complete with close-ups. Don't throw them away, refill them! Remember, the Paper-Mate Sharpwriter pencil uses 0.7mm lead. Standard Pentel lead will work excellent. The video was recorded with a Sony EVO-210 Video 8 8mm VCR.
Uses of Carbon. Carbon (in the form of coal, which is mainly carbon) is used as a fuel. Graphite is used for pencil tips, high temperature crucibles, dry cells, electrodes and as a lubricant. Diamonds are used in jewelry and â because they are so hard â in industry for cutting, drilling, grinding, and polishing.
Graphite in CanadaThere are 2 types of graphite-natural and synthetic. Natural graphite is black with a sub-metallic lustre, feels greasy and stains the fingers. Graphite is found mainly in METAMORPHIC ROCKS, most frequently in schist and as small crystals in impure marbles in association with other minerals.Timcal Canada Inc, in Lac-des-les, Quebec, is the only graphite producer in Canada. form of the element carbon (just like diamond is pure carbon). Graphite is used (with clays) in the lead of pencils, as a lubricant, for crucibles (vessels to hold high temp â¦ erature molten metals), and a host of other things.. 3 people found this useful.