I heard pencil lead is made from the mud from the mississippi river,,,is this true? I am curious to know....
2006-07-24 02:25:27 · 17 answers · asked by ? 6 in Entertainment & Music ➔ Polls & Surveys
carbon
2006-07-24 02:33:47 · answer #1 · answered by june 2 · 2⤊ 0⤋
Modern pencil leads are graphite (a form of carbon) and clay. The ratios and source of the clay effect the hardness of the "lead". Deposits of clay are formed in slow-moving waters. I don't know if any is mined for that reason in the Mississippi River. I know that Wyoming does have a number of clay deposits that are mined.
The metal lead will also mark a paper and was used historically. But it is toxic.
2006-07-24 10:29:28 · answer #2 · answered by David in Kenai 6 · 0⤊ 0⤋
Typically today pencil "lead" is made froma mix of graphite and clay, and contains no lead at all.
Mississippi mud is just mud.
2006-07-24 02:33:23 · answer #3 · answered by Kokopelli 7 · 0⤊ 0⤋
graphite, is one of the allotropes of carbon. Unlike diamond, graphite is a conductor, and can be used, for instance, as the material in the electrodes of an electrical arc lamp. Graphite holds the distinction of being the most stable form of solid carbon ever discovered. It may be considered to be the highest grade of coal, just above anthracite, although it is not normally used as fuel because it is hard to ignite.
2006-07-24 02:28:58 · answer #4 · answered by Not_Here 6 · 0⤊ 0⤋
Graphite
2006-07-24 02:27:41 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Graphite..a composition of Lead.
2006-07-24 02:29:48 · answer #6 · answered by kit walker 6 · 0⤊ 0⤋
The Mississippi river is an urban legend, so no.
2006-07-24 02:28:04 · answer #7 · answered by Anonymous · 0⤊ 0⤋
pencil lead is really graphite, a weak and much less valuable cousin to diamonds.
2006-07-24 04:02:25 · answer #8 · answered by manw/thegoldengun 3 · 0⤊ 0⤋
Myth I think.
Lead hasn't been used for ages (if at all) in pencils due to health risks.
2006-07-24 02:29:52 · answer #9 · answered by ◄ Mal ► 3 · 0⤊ 0⤋
actually our pencils today are made of graphite, not lead
2006-07-24 02:28:47 · answer #10 · answered by A.Marie 5 · 0⤊ 0⤋
all over the world pencil factoris r there
2006-07-24 02:28:55 · answer #11 · answered by ranga66tr 3 · 0⤊ 0⤋