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Webster 1913 Edition

Sinter

Sin′ter

,
Noun.
[G. Cf.
Cinder
.]
(Min.)
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.

Webster 1828 Edition

Sinter

SIN'TER

,
Noun.
In mineralogy, calcarious sinter is a variety of carbonate of lime, composed of a series of successive layers, concentric, plane or undulated, and nearly or quite parallel. It appears under various forms. Silicious sinter is white or grayish, light, brittle, porous,, and of a fibrous texture. Opaline silicious sinter somewhat resembles opal. It is whitish, with brownish, blackish or bluish spots, and its fragments present dendritic appearances. Pearl sinter or fiorite occurs in stalactitic, cylindrical, botryoidal, and globular masses, white or grayish.

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