Category:Sinter

Sin"ter, n. Etym: [g. Cf. Cinder.] (min.)

Defn: dross, as of iron; the scale which files from iron when Hammered; -- applied as a name to various minerals. Calcareous Sinter, a loose banded variety of calcite formed by deposition from Lime-bearing waters; calcareous tufa; travertine. -- ceraunian sinter, fulgurite. -- siliceous sinter, a light cellular or fibrous opal; especially, Geyserite (see geyserite). It has often a pearly luster, and is then Called pearl sinter.