Sphalerite, which is a form of zinc sulfide, is the most heavily mined zinc-containing ore because its concentrate contains 60 – 62 % zinc.

Sphalerite (( Zn, Fe ) S ) is a mineral that is the chief ore of zinc.

Sphalerite is the major ore of zinc and is found in thousands of locations worldwide.

Sphalerite or zinc sulfide is also, common in the region.

* Acanthite Ag < sub > 2 </ sub > S, Chalcocite Cu < sub > 2 </ sub > S, Bornite Cu < sub > 5 </ sub > FeS < sub > 4 </ sub >, Galena PbS, Sphalerite ZnS, Chalcopyrite CuFeS < sub > 2 </ sub >, Pyrrhotite Fe < sub > 1-x </ sub > S, Millerite NiS, Pentlandite ( Fe, Ni )< sub > 9 </ sub > S < sub > 8 </ sub >, Covellite CuS, Cinnabar HgS, Realgar AsS, Orpiment As < sub > 2 </ sub > S < sub > 3 </ sub >, Stibnite Sb < sub > 2 </ sub > S < sub > 3 </ sub >, Pyrite FeS < sub > 2 </ sub >, Marcasite FeS < sub > 2 </ sub >, Molybdenite MoS < sub > 2 </ sub >

Sphalerite crystallizes in the isometric crystal system and possesses perfect dodecahedral cleavage.

Sphalerite crystal on Dolomite, Lengenbach.

: 05a Rudashevskyite, 05a Hawleyite, 05a Coloradoite, 05a Metacinnabar, 05a Sphalerite, 05a Tiemannite, 05a Stilleite, 05b Sakuraiite, 05c Polhemusite ; 07. 0 Arsenosulvanite?

Sphalerite and galena ore specimen from the Naica mine.

Even so astute a commentator as Harold Clurman of The Nation has said that `` Waiting For Godot '' is `` the concentrate of the contemporary European mood of despair ''.

In this article we will concentrate on the advances in the application of electronics in bio-medical research laboratories because this is where tomorrow's commonplace equipment originates.

that is to say, to concentrate on a particular crop or activity in a particular area at a strategic time, rather than any broadside engagement with management throughout an area or the State.

For example, if two characters are wrestling the relevant attribute is Strength ; a character could reveal a weapon, changing it to Warfare ; they could try to overcome the other character's mind using a power, changing it to Psyche ; or they could concentrate their strength on defense, changing it to Endurance.

It is damn hard to concentrate ... when all the atmosphere is filled with gloom and forebodings about will the show get the money to go on?

A burning glass or burning lens is a large convex lens that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface.

The Viking lenses effectively concentrate sunlight enough to ignite fires ; however it is not known whether they were used for this purpose.

Eisbock is a traditional specialty beer of the Kulmbach district of Germany that is made by partially freezing a doppelbock and removing the water ice to concentrate the flavour and alcohol content, which ranges from 9 % to 13 % by volume.

To some scholars, such as Donald McCaffrey, this is an indication that Chaplin never completely understood film as a medium, but Gerald Mast has argued that by deliberately adopting this approach, Chaplin made " all consciousness of the cinematic medium disappear so completely that we concentrate solely on the photographic subject rather than the process ".

Once a patient is stable and no longer in immediate danger, the medical staff may concentrate on maintaining the health of patient ’ s physical state.

The Prophet Mohammed told them that, despite this being good, it is also a blessing to raise a family, to remain moderate and not to concentrate too much on one aspect as not only can this be unhealthy for an individual as well as upon society, it may also take one away from God.

The company produces concentrate, which is then sold to licensed Coca-Cola bottlers throughout the world.

Cranberry wine is made in some of the cranberry-growing regions of the United States and Canada from either whole cranberries, cranberry juice or cranberry juice concentrate.

Some patients report fatigue or non-specific neurocognitive problems, such as an inability to concentrate ; this is sometimes called post-chemotherapy cognitive impairment, referred to as " chemo brain " by patients ' groups.

In 1772, Antoine Lavoisier used a lens to concentrate the rays of the sun on a diamond in an atmosphere of oxygen, and showed that the only product of the combustion was carbon dioxide, proving that diamond is composed of carbon.

If this goal is met by a DBMS, then the designers and builders of the specific database can concentrate on the application's aspects, and not deal with building and maintaining the underlying DBMS.

*** Solar thermal energy ( the sun as the heat source ): solar parabolic troughs and solar power towers concentrate sunlight to heat a heat transfer fluid, which is then used to produce steam.

Most known exoplanets orbit stars roughly similar to the Sun, that is, main-sequence stars of spectral categories F, G, or K. One reason is that planet search programs have tended to concentrate on such stars.

The aim is not only to make the code more readable, but also to allow programmers to concentrate on the important aspects of a program without getting bogged down in implementation details.

The purpose of this is to allow the user to concentrate on manipulation of the instrument, whilst retaining auditory feedback on the radiation rate.

One strategy, packing, is to concentrate as many voters of one type into a single electoral district to reduce their influence in other districts.

Otherwise the beer would qualify as a " beer concentrate ," which is illegal under ATF rules governing beer production.

Primary power for the mission was produced by a new solar array technology, the Solar Concentrator Array with Refractive Linear Element Technology ( SCARLET ), which uses linear Fresnel lenses made of silicone to concentrate sunlight onto solar cells.

Oxygen is produced industrially by fractional distillation of liquefied air, use of zeolites with pressure-cycling to concentrate oxygen from air, electrolysis of water and other means.

China produced 51, 000 tonnes of tungsten concentrate in 2009, which was 83 % of the world output.

Sales were poor, and having in its history produced a total of 90, 000 cars, Tatra finally abandoned their manufacture in 1999 to concentrate on trucks.

Babycham, the first mass-produced branded perry, was developed by Showering from application of the Long Ashton Institute's research, and was formerly produced from authentic perry pears, though is today produced from concentrate, the firm's pear orchards having now been dug up.

Ribena ( ) is a British brand of fruit-based uncarbonated soft drink, carbonated soft drink and fruit drink concentrate produced by GlaxoSmithKline.

It is variously produced fresh directly from fruit, reconstituted from frozen juice, dry powder, or liquid concentrate ; and colored in a variety of shades.

The uranium extraction process at the Sillamäe plant was developed in collaboration with a nearby Narva pilot plant ( known as Cloth Dyeing Factory ) and produced mainly a 40 % uranium concentrate at the onset of plant production.

He produced these projects through his production company, Spirit Dance Entertainment, which he shut down in 2005 to concentrate on his acting career.

The " BVK " plant, which started operation in 1973 and was closed in 2003, used n-paraffins ( produced by the oil refinery nearby ) as feed for yeast, in order to produce the so-called " protein and vitamin concentrate " ( single-cell protein ) for use as animal food.

During World War II, the company produced concentrated orange juice for the military ; after the war, 80 % of the juice the company produced was in frozen concentrate form to meet consumer demand for the relatively new, convenient form.

The use of a magnetic core can enormously concentrate the strength and increase the effect of magnetic fields produced by electric currents and permanent magnets.

A long and determined search produced five tons of concentrate in Brazil and we had it flown here to ensure that we ’ d meet our deadlines.

The washwater spirals separate particles more easily but can have issues with entrainment of gangue with the concentrate produced ..

It was used to recover a sphalerite concentrate from tailings, produced using gravity concentration.

Although several interesting offers came in from labels all around Europe, the band refused all approaches in order to concentrate on the work for their first full album, again produced by Paolo Favati and his production company Dune.

Aquatic feed is produced in the forms of concentrate, powder and pellets and distributed through sales representatives that are located in shrimp farming areas throughout the country.

It differs from other whey protein concentrate mainly by virtue of the principles of food rheology ; it is produced by a mechanical, rather than a chemical process.

The concentrate, produced by repeatedly boiling tea leaves, will keep for several days, and is commonly used in towns.