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Welding, cutting torch, and meteorites! - Welding Tips and ...

Mar 27, 2011· Joined: Fri Feb 25, 2011 4:33 am. Re: Welding, cutting torch, and meteorites! Plasma is a state of matter where the heat is so intense that atomic nuclei and electrons can no longer hold on to each other. This makes the flow of current through the jet of …

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Meteorite or wrong? - Friendly Metal Detecting Forums

Sep 20, 2016· Meteorite or wrong? Help To ID My Finds. List all sponsors : Friendly Metal Detecting Forums > Everything About Finds > Help To ID My Finds: Meteorite or wrong?

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Meteorite or Meteorwrong? …the Journey

The densest meteorites are the iron-nickel and stony-iron type. Stony meteorites may or may not seem heavier than common rocks. Some rocks and slag are very dense. Iron-nickel meteorites will exhibit a diagnostic criss-cross "Widmanstätten" pattern when etched with a …

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Identity Help : Slag/Clinker Mineral Identification ...

Oct 26, 2019· Identity Help Slag/Clinker Mineral Identification, Keweenaw County, Michigan 26th Oct 2019 23:15 UTC George John Balogh Looking for help with this sample taken from slag like lumps collected at the Cliff (copper) Mine, Keweenaw County, Michigan.

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A Gallery of Meteorwrongs | SpringerLink

But if you are a beginning meteorite hunter, you can easily be fooled by manmade objects such as rusted iron artifacts, slag from ore processing, clinkers from coal burning furnaces, and by natural objects such as basalt that's attracted to a magnet, chondrule-like spheres in volcanic rocks, and rocks with a coating of desert varnish that ...

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Real "guests" from the Solar System or just earth rocks ...

Jan 01, 2019· A dozen other samples were unambiguously rejected as meteorwrongs. They are no more than earth rocks, steel fragments or man-made cast iron, wrought iron containing slag and residual products from modern or ancient metallurgical processes, an incombustible matter left after a charcoal fire, the so-called clinker, or probably some kind of slag.

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Some Meteorite Realities | Some Meteorite Information ...

Very few stony meteorites have vesicles or holes. In those that do, the holes are sparse and small. Vesicles require gas and that the rock was once molten. Most meteorites were never molten. Iron meteorites sometimes have holes, however. If it is glassy and vesicular, then it is not a meteorite. glassy & vesicular = slag

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It's slag! Answer to FoW #33 | Ohio History Connection

Feb 25, 2015· Slag from the old iron furnaces of southeast Ohio often got scattered in the surrounding area and can still be found today. They are sometimes confused with obsidian or even meteorites. Hope Furnace. Photo by Jaknouse Both of the pieces of slag in the upper photo were collected from the old Hope Furnace in Vinton Co., Ohio.

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Slag recycling - recovery

The terms blast furnace slag (BFS) and granulated blast furnace slag, as well as LD slag and electric furnace slag are used for finer distinctions. With high-quality iron ore grades with an iron content of 64 to 67 %, a blast furnace typically produces about 0.25 to 0.30 t of slag per t of pig iron.

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IDENTIFYING METEORITES - Earth Sci

Iron meteorites are approximately four times as heavy as a terrestrial rock of the same size; stone meteorites about three times as heavy. 2. Meteorites usually have a smooth surface with rounded corners. They are never porous like some types of lava (pumice, for example). 3. Fresh meteorites will have a dark gray or black surface.

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Slag_from_iron_ore_melting | The Utas Collection of Meteorites

Meteorite identification and preservation. Facebook Twitter. Show ... iron gallery; stony-irons. about stony-irons; stony-iron gallery; in the field. hunting. What do meteorites look like? meteorite hunting videos; expeditions; meteorites for sale; Slag_from_iron_ore_melting utasmeteorites 3504 × 2336 pixels. Did you like this article? Share ...

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The UCLA Meteorite Collection - Case 7: California ...

Very few are real meteorites; those that are not are called "meteor-wrongs." Several examples of common (and not-so-common) meteor-wrongs are shown in the bottom half of the case. Such samples include copper ore, a sulfide nodule, magnetite, hematite, iron slag, green silicate slag containing manganese spherules, petrified wood, basalt ...

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iron slag with gold - droiddocket.com

iron slag or clinker meteorites - crusher manufacturers. iron slag or clinker meteorites - . Producing Portland cement from iron and steel slags and . Blending 10% extra iron slag to a cement clinker with granulated blast-furnace slag, cement from iron slag ...

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How to tell the difference between a meteorite and a slag ...

I won't call myself an expert on this, but I have a little experience with both. Many years ago, I visited a mine in Sudbury, Ontario. There was quite a bit of slag in the area, and I collected some of it. The thing I found interesting about the s...

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Meteorite FAQ - Natural Sciences

Iron slag or clinker. The most common imposter for a meteorite is metal slag from a furnace or blacksmith shop. Early in North Carolina's history, many small iron foundries or blacksmith shops operated wherever iron ores could be found. There were many of these small, undocumented operations in the state, and often a bit of slag is the only ...

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Slag | Some Meteorite Information | Washington University ...

Slag usually refers to a glassy by-product of smelting ores to retrieve the metal. I use the term here to also include any man-made, rock-like by-product of heating things to high temperature. Thus, clinkers are a form of slag. Slags catch people attention because of their morphology. Many slags contain metal from inefficient separation of ...

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The potential utilization of slag generated from iron- and ...

Oct 29, 2019· Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during the year (Worldsteel Association 2016).

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MODIFIED CHUTE DESIGN FOR SLAG REMOVAL IN …

removal of slag inside the chute. The slag depositions formed inside of the chute sharpen edges. In the mixing zone the additives like fly ash, clinker, gypsum, limestone, and additive slag feed by the weigh feeder. Weigh feeder is the belt conveyor which used to control the flow rate of the additive materials.

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Slag-What is it Good for? - USGS

Jun 29, 2017· We looked specifically at ferrous slag, the leftover material from the smelting of iron and steel, in the Chicago-Gary area of Illinois and Indiana. Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded.

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Meteor-wrongs | Meteorite Times Magazine

Jul 01, 2014· Personally, I prefer to exclude any "iron shale" that can be proven that it originated from an iron meteorite.) Slag – – (I've broadened this term to include any material that is man-made, or the residue from a manufacturing process, such as any ore that only partially melted.)

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Differences between a pallasite and a mesosiderite - Space ...

Jan 04, 2009· Differences between a pallasite and a mesosiderite - posted in Space Rocks: I saw this posted on another list and I asked the author if I could repost it here. With his permission, I am now reposting it. This is a detailed explanation of the differences between a pallasite and a mesosiderite. The latter is a type that can be confusing to new collectors because it has many different lithologies ...

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Meteorite Gallery, Photos, Information, Hunting, Research ...

And while manganese is dense/feels like metal, an iron meteorite would be made of ~90% iron, and would be very strongly attracted to a magnet. All metallic meteorites are strongly magnetic. Most manganese slag isn't very magnetic. Some manganese slag contains a decent amount of iron, so you have to be careful.

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A review on lead slag generation, characteristics, and ...

Jul 01, 2019· Primary lead slag has a high iron content, which can replace iron ore as a raw material to produce cement clinker. In addition, some aluminum silicate and zinc silicate form in primary lead slag, and can contribute to the melting and the mineralization of the raw material during the calcining of the raw material ( Zhou, 1992 ; Carvalho et al ...

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Meteorite Identification | Public | Clemson University ...

Important Terms. Meteorites are "fragments of rock or iron from a meteoroid, asteroid, or possibly a comet that pass through a planet or moon's atmosphere and survive the impact on the surface" (1).. Meteoroids are what meteorites are called while still in space (5).. Meteors are "the streaks of light we see at night as small meteoroids burns up passing through our atmosphere" (1)

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Meteors, Meteoroids, and Meteorites: Rocks from Outer Space

Iron meteorites are mostly iron-nickel. Nickel is the minor constituent and makes up from about 1% to 25% of the mass. A few other minerals such as troilite (FeS), schreibersite, (Fe,Ni,Co) 3P, or graphite occur as inclusions within the metal. Iron-nickel is really a mixture of two closely related iron-nickel minerals. Kamacite is the lower-nickel

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Reusing Desulfurization Slag in Cement Clinker Production ...

(slag) +S2 (iron)!CaS (slag) (1) This slag, namely De-S slag, is composed of the desulfurization products, unreacted lime, entrapped iron, and other impurities, e.g., non-ferrous metals and silica. Based on the primary compositions, De-S slag may be considered as …

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Clinker (waste) - Wikipedia

Clinker is a general name given to waste from industrial processes, particularly those that involve smelting metals, welding, burning fossil fuels and use of a blacksmith's forge, which commonly causes a large buildup of clinker around the tuyere.Clinker often forms a loose, dark deposit consisting of waste materials such as coke, coal, slag, charcoal, and grit.

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The Step-by-Step Process of Producing Iron from Iron Ore ...

Oct 23, 2017· The Step-by-Step Process of Producing Iron from Iron Ore. Some 3000-4000 years ago, the ancient Egyptians derived iron from the fallen meteorites (or so they say), carved them and made tools and equipment besides jewelry. We have come a long way since then. Now, first of all, pure iron is rarely available (except if one or two meteorites crash).

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