sinter

That water at a high temperature can hold quartz in solution is well illustrated by the deposits of silicious sinter, thrown down by thermal springs, […]

Consider a copper sinter material with spherical sinter particles in an early stage of the sintering process, see Fig. 3.5(a).

A combination of fully and partly automatic working provides speed, efficiency and manpower economy in unloading coal, home ore, foreign ore and coke and concentrates from incoming wagons and loading outgoing wagons for despatch to the company's Ebbw works with export ore and sinter.