Slate flour

Description

A dark green to black finely ground powder of Slate. Slate flour is used as a filler in rubber and plastics. Green slate contains a significant amount of Chlorite, a dark green clay mineral.

Synonyms and Related Terms

green slate; poudre d'ardoise (Fr.)

Resources and Citations

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• Olympus Microscopy Resource Center at http://www.olympusmicro.com/galleries/polarizedlight/pages/slategreensmall.html (Accessed Sept. 17, 2005)