iron sulfide
iron sulphide

A thin iron sulfide layer covered most of the exposed areas.

The soils on the lake beds are naturally rich in iron sulfides.

Radar was out because of the iron sulfide content of the rock.

These iron sulfides were long considered to be pyrite.

It can also be made by oxidation of pyrite, an iron sulfide material.

And on top of that, there is a thinner layer of iron sulfide.

In addition, pyrite (an iron sulfide) is often present.

Chalcopyrite is a copper iron sulfide that glitters like gold.

Its is a mixed zinc and iron sulfide.

The iron sulfide minerals also dissociate to form sulfuric acid.

In the year and a half of exposure, everything iron or steel got converted to iron sulfide.

The gas then passed on to the gasholder and the iron sulfide was sold to extract the sulfur.

The hypothesis proposes that early life may have formed on the surface of iron sulfide minerals, hence the name.

The iron sulfide film formed on the disc surface has been identified by X-ray diffraction analysis.

Iron sulfide is used in black powder.

Higher carbon content causes greater deposition of iron sulfide, which appears as a black varve.

The auriferous iron sulfide was finely disseminated through the quartz.

The black color is due to the high amounts of iron sulfide generated by the green sulfure reducing bacteria.

In a parallel reaction the iron sulfide is converted to slag:

The liquor's eponymous green colour arises from the presence of colloidal iron sulfide.

Spring water dissolves iron sulfide minerals from the ores, and this stains the river red.

Iron sulfide forms a black precipitate that causes severe staining and laundry problems.

Magnetite and iron sulfide particles have been found in the carbonate globules.

Other chemicals found included iron sulfide and magnetite, two minerals which are often associated with primitive bacteria.

Cracks spread only by fanning out around the iron sulphide particles.

Iron sulphide layers are found along the coastline of Queensland.

In general, we expect to find iron sulphide layers where the surface elevation is less than five meters above mean sea level.

Disconnect, keep any remaining iron sulphide, wash and store.

Here, the crystal structure of the iron sulphide mineral mackinawite is represented.

Iron sulphide is the main commodity shipped from Unhŭng.

Small natural inclusions in granite, such as pyrite or iron sulphide are frequently present.

Iron sulphide layers were formed under tidal conditions, so they are found in low-lying areas near the coast.

It is mostly copper iron sulphide.

Iron sulphide (pyrite) is one of the main rock types in the orebody, and also occurs distributed throughout the system.

The gold which is not trapped by the blankets is either very fine or is associated with other minerals, such as iron sulphide.

There are also mines, extracting the local deposits of copper, iron sulphide, lead, kaolin and tungsten.

One tonne of iron sulphide can produce 1.5 tonnes of sulphuric acid when oxidised.

In particular, opponents have noted that the presence of iron sulphide in the overburden could cause acid mine drainage.

The copper and iron sulphide minerals form a molten matte which separates below the slag because of its higher density.

Iron sulphide crystal systems:

In addition, some of these water sources are highly suphide sour and may require treatment to prevent scaling, corrosion or iron sulphide precipitation.

In a laboratory, hydrogen sulphide is prepared by the action of dilute sulphuric acid on iron sulphide.

Diluted HSO is run down the funnel so as to cover the iron sulphide placed at bottom of the bottle.

From the broad range of possibilities, suspicion fell on the magnetic properties of an iron sulphide known by the name of pyrrhotite.

Hall used iron sulphide and powdered carbon in the chamber and discs of tantalum to conduct electricity into the cell to heat it.

Their steep pinnacles are built from carbonates and magnesium hydroxide rather than the iron sulphide minerals usually found at vents.

This method could be used as an index of the degree of the maturity of iron sulphide phases in recent sedimentary environments.

These archaeons are known to cause the corrosion of iron and steel in oil and gas processing systems by producing iron sulphide.