[Rockhounds] Magnetite/Garnet sand

[William Dicks]

As a quick aside on sand.
Try http://www.sandcollectors.org/ISCSHomeIndexx.html 

It's the International Sand Collectors home page. Go to their link
"Photo Gallery" for some really nice close up comparisons of sands of
the world.
_______________

Bill Dicks
Teacher,
Northville High School
Board Member,
Michigan Earth Science Teachers Association


>>> pmodreski at aol.com 03/24/09 1:00 PM >>>
A postscript to all this magnetite sand thread, there's a newly
published book, "Sand: the Never-Ending Story", by Michael Welland, that
is pretty good and interesting.? It discusses all the various aspects of
"sand"--geologic occurrence, its many varieties, industrial uses, its
role in art and culture, and so on.? I have a minor acknowledgement in
the book--the author had conferred with me several times for advice on
answering his question, "what's the source of the silicon used to
produce semiconductor chips?"? You can find info about the book on
Amazon or elsewhere.

That book?includes a few pictures, but there is also the picture book
about sand, "A?Grain of Sand, Nature's Secret Wonder",?by Gary Greenberg
and Stacy Keach.

cheers,
Pete


-----Original Message-----
From: J Bryan Kramer <codeburner at gmail.com>
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
<rockhounds at lists.drizzle.com>
Sent: Thu, 19 Mar 2009 9:48 am
Subject: Re: [Rockhounds] Magnetite/Garnet sand



I'm sure some one posted info about this on the list before, but here
is
Thomas Edison's experience with beach magnetite mining:

<http://www.americanheritage.com/articles/magazine/it/1991/3/1991_3_8.shtml>

BK

On Thu, Mar 19, 2009 at 10:26, Lawrence Rush
<larryrush at worldnet.att.net>wrote:

> Kreigh's postings about the Magnetite sand at the Great Lakes
reminded me
> that I had promised to go back to the Rhode Island beach where I had
> mentioned the differentiation of Magnetite and Garnet sand layers.
>
> Yesterday was a nice pre-spring day, temps in the low 50's F., so we
went
> up there only to find that the beach was windy, very cold, and the
> mineralized layers had been washed away, of course. I did find some
strands
> of mixed heavy minerals, and brought back enough for anyone who wants
to
> check them out with a microscope.
> By eye, it looks like almost entirely Magnetite and Almandine, minor
> Quartz.
>
> I haven't washed this sand, or run a magnet through it, or even
looked
> closely at it, but if anyone is interested, just send me enough for
postage,
> along with your mailing address, and I'll send you however much you
want.
>
> Larry Rush
>
>
>
>
> --
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-- 
t often seems to me that the night is much more alive and richly
colored
than the day."

                      Vincent van Gogh

J Bryan Krer       North Florida, USA
photos at: http://pbase.com/photoburner 
blog at: http://www.photoburner.net 


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