Assertion: dolomite's impurity | /r/HasProperty | removed in the form of silica concretions
Facets:
value: from it
type: LOCATION
Source sentences:
text: As a result of photometric sorting of the 15–20-, 10–15-, and 5–10-mm fractions of the dolomite ore, the harmful impurities were removed from it in the form of silica concretions, and the silicon dioxide content in the beneficiated concentrate was reduced to 1.1–1.2% from the 2.2–2.3% in the original.