Magnetite in a sentence

A couple of youngsters with magic sand (locally sourced black magnetite), magnets, small steel objects, and a carved/polished bowl fashioned out of a 50-pound, half-a-billion-year-old magnetic glacial erratic Cumberlandite stone found up-Island.

Followed by two stages of regrind and cleaner magnetic separation, a further 12% of fresh plant feed is diverted to final tailings, resulting in a "magnetics only" concentrate consisting of awaruite and magnetite.

We have a few core samples, which have magnetite in them.

Additionally, Lincoln is positioning itself to grab a seat at the green steel transition table after lodging ambitious plans to develop its massive 1.1 billion-tonne Green Iron magnetite project just up the road.

The plan is to convert the Whyalla Steelworks in the Upper Spencer Gulf into a direct reduced iron (DRI) plant capable of taking 2.5 million tonnes per annum of magnetite ore.

The absence of iron-rich calc-silicate minerals, magnetite skarn and copper mineralization support a distal setting for the deposit.

The addition of the Iron Bridge magnetite project in 2022 will bring more balance to Fortescue's production profile.

A preliminary feasibility study released by Kogi Iron revealed that the Agbaja mineral resource was a unique sedimentary hosted magnetite deposit with a resource grade averaging 41.3% iron.

A second dcMEG scan taken several minutes later revealed changes in the magnetic field that reflect the size and shape of magnetite particles, as well as other factors.

Markus Meurer, Nornickel's head of global sales, says the Company has already signed long-term contracts to sell copper and magnetite concentrates.

The researchers discovered several chemically reduced iron species in the amyloid protein plaques of brains of Alzheimer’s patients, including a proliferation of a magnetic iron oxide called magnetite that is not commonly found in the brain.

An example is magnetite (Fe 3 O 4 ), which contains Fe 2+ and Fe 3+ ions with different magnetic moments.

In industrial practice, the iron catalyst is obtained from finely ground iron powder, which is usually obtained by reduction of high purity magnetite (Fe 3 O 4 ).

In rhyolites and trachytes, early crystals of hornblende and biotite may be found in great numbers partially converted into augite and magnetite.

It has a spinel -like structure similar to magnetite but uses one quadravalent and two divalent cations M 2 +2 M +4 O 4 instead of two trivalent and one divalent cations.

It has since been shown that similar magnetite structures can form without the presence of microbial life in hydrothermal systems. citation A few meteorites were found in Antarctica between 1912 and 1964.

Modern ammonia-producing plants depend on industrial hydrogen production to react with atmospheric nitrogen using a magnetite catalyst or over a promoted Fe catalyst under high pressure (convert) and temperature (450 °C) to form anhydrous liquid ammonia.

More important, because the presence of magnetite gives the basalt measurable magnetic properties, these newly discovered magnetic variations provided another means to study the deep ocean floor.

The magnetite particles are then partially reduced, removing some of the oxygen in the process.

The pulverized iron metal is burnt (oxidized) to give magnetite of a defined particle size.