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A brass-colored mineral, FeS2, occurring widely and used as an iron ore and in producing sulfur dioxide for sulfuric acid. Also called fool's gold, iron pyrites.

[Middle English perides, pirite, from Old French pirite, from Latin pyrītēs, flint; see pyrites.]

py·rit′ic (-rĭt′ĭk), py·rit′i·cal (-ĭ-kəl) adj.
References in periodicals archive ?
The drilling targeted extensions and infilled previously intersected mineralisation in the Karangosso Zone, which was noted by Savary as being hosted in silicified granite with pyritic quartz-vein zones.
y y hed l t The Finance (Local Property Tax) Act a 2012 provides for a temporary exemption of at least three years from Local Property Tax for homes with "significant pyritic damage".
Works contractors are required for to carry out the remediation of dwellings damaged by pyritic underfloor filling under the terms of the pyrite remediation scheme.
Hole MDX-13-38, testing a second target 1,500 metres to the north of hole 39, intersected a 16-metre-wide interval of pyritic mudstone with locally anomalous copper, lead, zinc and silver values.
Two holes are planned in the area of pyritic rhyolite porphyry 500m west of the Iron Glen Quarry.
Total sulphur and different forms of sulphur (sulphide sulphur, sulphate sulphur, pyritic sulphur and organic sulphur) in solid semicoke were determined according to the Estonian standard EVS 664:1995 for solid fuels [7].
Looking at these beautiful volumes, one would hardly have guessed that they came from the library of an American-born metallurgist, who had been a leading authority on pyritic smelting when he was brought to Australia in 1895.
In backswamps, at distance from the main river levees, pyritic sediments are often <1 m below the soil surface (Walker 1972; Lin et al.
It combines three commercially available technologies in a single, integrated process to separate pyritic sulfur and other impurities from raw coal.
It will pass through a moderate pyritic layer and then into what appears like a porphyry center.
The drilling targeted extensions to previously intersected high-grade mineralisation, noted by Savary as being hosted by quartz-veined, sericitic and pyritic fine grained sediments intruded by quartz-feldspar porphyry sills.
Two separate frameworks will be established on a lot basis: a) lot 1 for the remediation of 7 or more dwellings b) lot 2 for the remediation of 6 or less dwellings construction design professional services (chartered engineers, architects, building surveyors or equivalents) are required for the remediation of dwellings damaged by pyritic underfloor filling under the terms of the pyrite remediation scheme.