sinter

A chemical sediment or crust, as of porous silica, deposited by a mineral spring.

A mass formed by sintering.

To cause (metallic powder, for example) to form a coherent mass by heating without melting.

To form a coherent mass by heating without melting.

Silicious or calcareous matter deposited by springs.

An obsolete form of center.

To compact or become compacted together by partial fusion, so as to resemble sinter. See sintering.

Dross, as of iron; the scale which files from iron when hammered; — applied as a name to various minerals.

a loose banded variety of calcite formed by deposition from lime-bearing waters; calcareous tufa; travertine.

fulgurite.