Definition of slate pencil in English:

slate pencil

noun

historical

单词	slate pencil
释义	Definition of slate pencil in English: slate pencil noun historical A pencil made of soft slate used for writing on slate. 〈主史〉（在石板上书写用的）石笔 Example sentencesExamples Eventually, the slate pencil was replaced by soft chalk, making it easier to write. Vintage slate pencils become increasingly more difficult to find, so many become broken over the years. It might be interesting if you do a bit of extra research to find out exactly what a slate pencil was. Slates and slate pencils were the forerunner of the whiteboard, and were the greatest paper saving device known. The manufacture of slate pencils from soapstone is an industry as old as the manufacture of slates.
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