Pencil cores are generally made of graphite mixed with a clay binder which creates easily erased grey or black marks. Graphite pencils are used for both writing and drawing which provides a durable mark, resistant to moisture, ultraviolet radiation, and aging. Pencils come with either numbers or letters on them.
Overlap two thick layers of different oil pastel colors on paper. Using a paper clip or wooden stylus, scratch or scrape away line designs revealing the color underneath. 7. Oil Using a cotton swab soaked in baby oil, smooth the oil pastel to create blended color or your paper. Let dry overnight.