[meteorite-list] The Life of Slag/Slag-glass ...was What is this?

From: Michael Blood <mlblood_at_meteoritecentral.com>
Date: Mon, 17 Jun 2013 14:06:59 -0700
Message-ID: <CDE4C883.2FA15%mlblood_at_cox.net>

        The life of THIS slag is that it will, apparently, live forever on
this list!
        Michael


On 6/17/13 1:02 PM, "plagioklas at arcor.de" <plagioklas at arcor.de> wrote:

> This slag was never in space or MIR. Its common slag, which has been placed
> togfether with many tons of other pieces on the shore of the river to ensure
> its stability. As Michael Farmer told, the Stone never saw anyone from the
> NASA. People tell many storys to let their own opinions sound stronger.
>
> The probability that a meteorite looks like this is zero. Most slags have
> common optical features (mostly certain crystals or materials (glass, metals
> in form of drops), flow patterns and flowed looking surfaces, certain colors
> and especially the bubbles). These slags cannot be confused even when one
> identifies em on a bad quality photo.
> Alexander
>
>
> ----- Original Nachricht ----
> Von: cdtucson at cox.net
> An: MEM <mstreman53 at yahoo.com>, metlist
> <meteorite-list at meteoritecentral.com>
> Datum: 17.06.2013 20:13
> Betreff: Re: [meteorite-list] The Life of Slag/Slag-glass ...was What is
> this?
>
>> Elton,
>> As always you make some very good points.
>> I agree that this is a glassy slag. But, the question is; Where did it come
>> from?
>> Did the MIR have any glass that could have melted upon re-entry?
>> And who at NASA said it came from MIR? To me those are the critical
>> questions because if for example A fellow at NASA named Grossman or Korotev
>> said it I would tend to believe them. No need for pigeon holing material
>> because it "looks" like slag. I know this is a stretch but, Some meteorites
>> do look like slag. Look close at a hand specimen ( not a photo) of Vaca
>> Muerta .
>> Carl
>> meteoritemax
>>
>> --
>> Cheers
>>
>> ---- MEM <mstreman53 at yahoo.com> wrote:
>>>
>>>
>>> I don't know which is a sadder example of failed science education: some
>> "NASA" "water cooler" engineer issuing a positive ID/letter of authenticity
>> for something impossible and under the color of authority of NASA--(Another
>> waste-fraud and abuse complaint to be made) OR the entire met central
>> membership and not one poster can recognize silicate ==> slag <===on sight.?
>> ( I am not saying that "everyone" should be a slag expert just that there
>> should be more experts with critical vs casual identification skills given
>> all the talent represented here.)
>>>
>>> A bit more than a few would-be meteorite experts need to spend an extra 3
>> hours of field time getting to know ==> slag <== because I can't think of a
>> location in the lower 48, nor in all of Europe that would be farther than 3
>> hours max from a graveled path or railroad that doesn't have tons of it on
>> the surface.? ( I've found slag in Alaska but not in Hawaii where natural
>> slag is known as pahoe-pahoe)
>>>
>>> I was explaining the multitude of reasons that slag is found virtually
>> everywhere--including Revolutionary and Civil War foundries, long left
>> abandoned to rural pastures when I had someone once argue that his specimen
>> couldn't be slag from a rail road because there had never been a railroad
>> within miles.? I then showed him on the topo map where an abandoned rail
>> right-of-way was less than 200 yards from the dirt road he found his
>> "meteor-wrong" along.?
>>>
>>> Ever since the industrial revolution, the smelting industry has been
>> finding every possible way to get rid of it. I know of whole islands and
>> whole mountains of slag. Green glassy foamy slag is the most common owing to
>> the buoyancy of silicated minerals rising to the top of the mix in any ore
>> smelting. Depending on the pre-processing inefficiency, there can be lots
>> more slag than metal on each run--hence the need to farm the stuff off on
>> others being thankful they had a use for it!? Ballast for road beds, dumping
>> it off shore( See The Great Lake Emerald Meteorite saga) or using it for
>> shoreline erosion control or using it as gravel for paving are just a few.?
>> It is literally everywhere.?
>>>
>>>
>>> It just takes some experience and exposure to become a slag expert.? I
>> know first hand after sending some charcoal bearing volcanic glass to the
>> Smithsonian for radio-carbon dating a hither-to-unknown volcano from middle
>> Tennessee.? Mr Harold Banks returned the sample with a nice letter telling
>> that 12 year old that his slag wasn't suitable for dating.? I later found
>> that I had pulled it from a Civil War Cannonball foundry.? Point: slag is
>> everywhere even if the original source is long gone. The slag last forever
>> for human understanding, even across cultures and ages.? There are
>> pre-historic slag piles on Cyprus, Italy, Greece, Egypt etc.? It is a
>> fallacy of logic to believe that something "can't be slag" because you don't
>> know exactly how it came to be in a location. Seems that to believe it
>> therefore "came from space" seems to be the corollary which always follows.
>>>
>>> The most frequent meteor-wrong brought in for identification, we should
>> all get to know it by characteristic and by sight so that the kinds of
>> disruptions we see every few weeks by the novice insisting that it couldn't
>> be slag and must be a meteorite could be simply answered in the FAQ section.
>>>
>>> Regards,
>>> Elton
>>>
>>> ______________________________________________
>>>
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>>
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Received on Mon 17 Jun 2013 05:06:59 PM PDT