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Graphite from the Franklin Pierce Mine

SKU #RM-610
Availability: In Stock
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Your students will be fascinated with the idea of writing with a mineral.

Description

Show students a chunk of graphite from an old historic mine in New Hampshire. They will be fascinated with the idea of writing with a piece of mineral. Use a battery, wire, and bulb to show that graphite conducts electricity. Each sample is about one pound of graphite and may contain some rock matrix.

Graphite from President Pierce's mine was used to make pencils in the 19th century. In 1849 the mine produced twenty tons of graphite per year at three to five cents per pound, or about $1600 per year.
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1 review
write with a rock
Review star icon Review star icon Review star icon Review star icon Review star icon Jul 18, 2020
I was collecting materials for rocks types. You know igneous, sedimentary and metamorphic. Graphite is metamorphic, observation and do not jump to conclusions. all rock are not super hard. the Franklin mine graphite is a great example of graphite and you can demo it is soft enough to write on paper,
MaryAnne Richards

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