# Question

Discussion in 'Off-Topic' started by loosewire, Sep 8, 2011.

1. ### loosewire Thread Starter AAC Fanatic!

Apr 25, 2008
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435
How does a block of marble compare to glass marble.
The block marble is use for counter tops.
Glass marbles is like the marbles we played with as kids.
I want to know if the counter top marble is an
insulator or conductor. explain

thanks anyway

Last edited: Sep 8, 2011
2. ### steveb Senior Member

Jul 3, 2008
2,433
469
Is this a real question,

If it's a poem,
I like it.

If it's a question,
because the typical constituents of marble,
dispite the wide variation of constituents
from sample to sample,
have conductivity in the range
we normally classify as insulator.

I hope you liked my poem entitled "Answer"

3. ### loosewire Thread Starter AAC Fanatic!

Apr 25, 2008
1,584
435
Dialog- If I stand on slab of marble and touch
the Loosewire I will be shocked, that makes it
a conductor not an Insulator.What if you could
afford marble floors.Wikipedia mentions rock and
stone when they are describing marble,real
marble.
What got me started on this was the first a/c

unit being a block of marble that was put out

in the cold desert night,and back in building

during the day for cooling. Absorbing heat got

me thinking about conducting in the heat exchange.

Any dialog.

Last edited: Sep 8, 2011
4. ### TBayBoy Member

May 25, 2011
148
19
Isn't marble a constituent of different types of rock, so I don't think there can be one blanket statement about the insulation or conductance, I would figure it varies with the sample.

5. ### loosewire Thread Starter AAC Fanatic!

Apr 25, 2008
1,584
435
If I stood on a marble a floor bare footed I would get shocked.
Just about any type marble would be ground.

Glass marble, glass is made of sand thats a form of ground.

Last edited: Sep 8, 2011
6. ### shortbus AAC Fanatic!

Sep 30, 2009
4,095
1,685
Loosie, I'm pretty sure you've lost your marbles

7. ### loosewire Thread Starter AAC Fanatic!

Apr 25, 2008
1,584
435
Yep,lost my marbles.That what I get for thinking about
cool things.

8. ### Wendy Moderator

Mar 24, 2008
20,772
2,540
A glass marble is Silicon Dioxide, it can melt, but it won't burn.

Marble is Calcium Carbonate, which is pretty active chemically. Then you take a Tums you are eating processed ground calcium carbonate. Really.

Heat marble enough, it will burn, just like coal.

9. ### loosewire Thread Starter AAC Fanatic!

Apr 25, 2008
1,584
435
There a college education on glass making on wikipedea.

10. ### steveb Senior Member

Jul 3, 2008
2,433
469
The a/c properties of marble relate to its heat capacity more than its thermal conductivity. There is a relation between them, but it's not a hard relationship. Thermal and electrical conductivity correlate to a greater extent. The range from conductor to insulator is a broad spectrum extending over something like 40 orders of magnitude.

Something like marble is more in the middle, but leans towards the side of insulators. For, example, it's within 1 or 2 orders of magnitude from deionized water, which is considered an insulator. It's also not too far off from pure silicon which is considered a semiconductor that (when undoped) is not a very good conductor of electricity.

11. ### Wendy Moderator

Mar 24, 2008
20,772
2,540
Silicon dioxide (glass) is usually considered a very good insulator. I've handled pure silicon due to my job, while it looks like glass it isn't really.