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Posted by Proctologically Violated©® on April 23, 2006, 6:49 pm
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Awl--
Wouldna bleeved had I not seed it.
Friend brought over a magnet from a hard drive (really nice strong magnet),
and BAM, stuck right to the granite base of my height gauge!
Well, actually, it's just the granite base, cuz there is no height
gauge--supplier's scrap heap, donchaknow.... :)
And stuck perty good! wow....
Thus, boyzngerlz, thar must be iron in them thar granite hills!!
--
Mr. P.V.'d
formerly Droll Troll
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Posted by Martin H. Eastburn on April 23, 2006, 7:29 pm
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On a whim, I tried to cut a sample tile of Granite with an old plasma source.
Thought - nothing lost - this is just about junk. The plasma dug deep - almost
1/4" and started to move down the drawn line when it stopped. The melted
granite
was a spear of glass.
Martin
Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH & Endowment Member
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member
Proctologically Violated©® wrote:
> Awl--
>
> Wouldna bleeved had I not seed it.
>
> Friend brought over a magnet from a hard drive (really nice strong magnet),
> and BAM, stuck right to the granite base of my height gauge!
> Well, actually, it's just the granite base, cuz there is no height
> gauge--supplier's scrap heap, donchaknow.... :)
> And stuck perty good! wow....
>
> Thus, boyzngerlz, thar must be iron in them thar granite hills!!
> --
> Mr. P.V.'d
> formerly Droll Troll
>
>
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Posted by David Billington on April 23, 2006, 8:04 pm
Please log in for more thread options It would be interesting to know what granite was used for the base of
your height gauge. The black granite I have about shows no magnetic
attraction at all when NiFeBn magnet is placed on it. As granite is
predominantly SiO2 it would be interesting to know why the magnetic
attraction .
Proctologically Violated©® wrote:
>Awl--
>
>Wouldna bleeved had I not seed it.
>
>Friend brought over a magnet from a hard drive (really nice strong magnet),
>and BAM, stuck right to the granite base of my height gauge!
>Well, actually, it's just the granite base, cuz there is no height
>gauge--supplier's scrap heap, donchaknow.... :)
>And stuck perty good! wow....
>
>Thus, boyzngerlz, thar must be iron in them thar granite hills!!
>--
>Mr. P.V.'d
>formerly Droll Troll
>
>
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Posted by Proctologically Violated©® on April 23, 2006, 9:05 pm
Please log in for more thread options Stones, incl. gemstones, are perty pedestrian, chemically speaking.
I remember seeing the formulas for various gemstones in Erf Science, and
feeling quite deflated, a little cheated, by the mundanity of them all.
SiO2, Al2O3, peppered w/ various metal ions, such as potassium, sodium,
beryllium, boron, etc. And, apparently, iron.
Ultimately super-expensive glass and grinding wheels, w/ impurities!!!
And in the case of diamond, just goddamm Carbon!! And thermodynamically
*unstable* C, at that!!
Altho, the various colored diamonds must have another metal stuck somewhere
in the crystal lattice, which probably reduces the hardness somewhat.
Compared w/ organic molecules, such as chlorophyll, the porphyrin ring in
hemoglobin, vit B12, and other structures, stones are perty plain.
Nickel is weakly magnetic, as well. Also liquid oxygen, and a cupla other
things. Someone mentioned Bn? What's dat??
As far as metal in the granite base, I don't believe there is any, as I
cain't see any and the magnet sticks uniformly over the whole surface.
Metal would likely produce local attractions.
You can detect the magnetic properties w/ a good telescoping pickup wand,
but not as nice as with one of those hard drive mags. Need a high mag
strength/weight ratio to really see the effect.
Could be that magnetic granite is crappy granite. Chinese base,
donchaknow...
But at any rate, it will be an interesting past-time to see what rocks are
magnetic around here!
--
Mr. P.V.'d
formerly Droll Troll
> It would be interesting to know what granite was used for the base of your
> height gauge. The black granite I have about shows no magnetic attraction
> at all when NiFeBn magnet is placed on it. As granite is predominantly
> SiO2 it would be interesting to know why the magnetic attraction .
>
> Proctologically Violated©® wrote:
>
>>Awl--
>>
>>Wouldna bleeved had I not seed it.
>>
>>Friend brought over a magnet from a hard drive (really nice strong
>>magnet), and BAM, stuck right to the granite base of my height gauge!
>>Well, actually, it's just the granite base, cuz there is no height
>>gauge--supplier's scrap heap, donchaknow.... :)
>>And stuck perty good! wow....
>>
>>Thus, boyzngerlz, thar must be iron in them thar granite hills!!
>>--
>>Mr. P.V.'d
>>formerly Droll Troll
>>
>
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Posted by Christopher Tidy on April 23, 2006, 9:08 pm
Please log in for more thread options David Billington wrote:
> It would be interesting to know what granite was used for the base of
> your height gauge. The black granite I have about shows no magnetic
> attraction at all when NiFeBn magnet is placed on it. As granite is
> predominantly SiO2 it would be interesting to know why the magnetic
> attraction.
Given the strength of these magnets I could believe it was just being
attracted to a steel fitting in the centre of the height gauge base. Is
this possible, or was it definitely being attracted to the granite?
Chris
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>
> Wouldna bleeved had I not seed it.
>
> Friend brought over a magnet from a hard drive (really nice strong magnet),
> and BAM, stuck right to the granite base of my height gauge!
> Well, actually, it's just the granite base, cuz there is no height
> gauge--supplier's scrap heap, donchaknow.... :)
> And stuck perty good! wow....
>
> Thus, boyzngerlz, thar must be iron in them thar granite hills!!
> --
> Mr. P.V.'d
> formerly Droll Troll
>
>