Luster

From Ohio History Central
Revision as of 14:26, 23 May 2013 by Admin (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

The appearance and character the surface of a mineral based on light that is reflected from that surface. Determining luster involves considering the brilliance of the surface, and estimating its ability to reflect light. Metals are said to have a metalic luster; silk, a silky luster; pearls, a pearly luster.