
Graphite as seen through the microscope. The field of view is 1/4" in diameter.
Graphite
The versatility of graphite makes it suitable for spontaneous sketches or highly finished work. A pencil or stick of graphite used on the flat side produces broad strokes and shaded areas; sharpened to a point it yields crisp lines. A dark gray metallic sheen can be observed by looking at a drawing from the side as light glances off the graphite surface. This effect is visible in the photomicrograph of graphite at the left.
Graphite pencils took the place of lead and silver metalpoints for rendering fine linear drawings, hence the familiar terms “pencil lead” or “lead pencil” (even though pencils contain no lead whatsoever). After its discovery in sixteenth-century England, natural graphite was so highly prized that by law it could be mined only six weeks a year, and was transported to London by armed guards. In the late eighteenth century, French inventor Nicolas-Jacques Conté patented a substitute for natural graphite. His formulation consisted of powdered graphite mixed with clay into a paste, then shaped into rods and fired like ceramic ware.

The proportions of clay and graphite can be varied to produce grades of hardness, categorized as H, F, B to indicate Hard, Firm and Black. Graphite is also available in stick and powder form, as shown at the top of the above illustration.
Examples from the Collection

Bowler Hat and Garment, 1885-1900
Paul Cézanne, French
Graphite on wove paper
Sheet: 5 × 8 1/2 inches (12.7 × 21.6 cm)
Gift of Mr. and Mrs. Walter H. Annenberg, 1987
1987-53-67b
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Paul Cézanne, French
Graphite on wove paper
Sheet: 5 × 8 1/2 inches (12.7 × 21.6 cm)
Gift of Mr. and Mrs. Walter H. Annenberg, 1987
1987-53-67b
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Study for "Mother and Child", 1924
Fernand Léger, French
Graphite pencil on wove paper
Sheet: 12 1/16 x 15 7/16 inches (30.6 x 39.2 cm)
A. E. Gallatin Collection, 1952
1952-61-69
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Fernand Léger, French
Graphite pencil on wove paper
Sheet: 12 1/16 x 15 7/16 inches (30.6 x 39.2 cm)
A. E. Gallatin Collection, 1952
1952-61-69
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Untitled (Ocean), 1969
Vija Celmins, American (born Latvia)
Graphite on wove paper prepared with white acrylic paint
Sheet: 14 x 18 3/4 inches (35.6 x 47.6 cm)
Purchased with a grant from the National Endowment for the Arts, and with matching funds contributed by Marion Boulton Stroud, Marilyn Steinbright, the J. J. Medveckis Foundation, David Gwinn, and Harvey S. Shipley Miller, 1991
1991-19-1
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Vija Celmins, American (born Latvia)
Graphite on wove paper prepared with white acrylic paint
Sheet: 14 x 18 3/4 inches (35.6 x 47.6 cm)
Purchased with a grant from the National Endowment for the Arts, and with matching funds contributed by Marion Boulton Stroud, Marilyn Steinbright, the J. J. Medveckis Foundation, David Gwinn, and Harvey S. Shipley Miller, 1991
1991-19-1
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