Gary Navarre on wed 18 jan 06
Hay Folks,
Remember the green rocks I mentioned finding while building the
foundation for the new Hobagama last year? Well I finally got some pretty
good shots of a couple with the Optio 60. The last 10 shots in the album
http://public.fotki.com/GindaUP/ca/ggm/glzrks/
Peter thinks the color cames from nickle deposited in the ancient sea
shore that formed this quartzite. I'm just wondering what will happen if I
grind them up and use in a glaze. But I can't find more now with all the
snow so I did a bit of exploing on cross country skis today and found some
interesting things in the woods out back. I added my
landlord's deer post and some semi-abandoned vehicles to
http://public.fotki.com/GindaUP/mup/dt06/
just for a fun walk in the woods for any shutins or city folk out there.
Had not done much skiing the last few years ago. Had to quit when I lived
at Gull Lake cause for some reason I kept tipping over. When I got up here
I was still a wreck for a couple years, but I think I'm over the hump, no
more bump. What I can't figure out is why I feel like a million bucks and
don't care if I get the money. Enjoy and stay in there!
G in Da UP
Navarre Pottery
Navarre Enterprises
Norway, Michigan, USA
http://public.fotki.com/GindaUP/
Hank Murrow on wed 18 jan 06
On Jan 18, 2006, at 1:34 AM, Gary Navarre wrote:
>
> Remember the green rocks I mentioned finding while building the
> foundation for the new Hobagama last year?
> Peter thinks the color cames from nickle deposited in the ancient sea
> shore that formed this quartzite. I'm just wondering what will happen
> if I
> grind them up and use in a glaze.
Dear Gary;
Try calcining some and grinding it to powder. Mix a bit of the powder
with Borax or frit and melt it on the head of a stainless wire or nail
to see what color it turns out to show. There are charts of colors that
show what each metal does under this test, but I don't know where to
send you for them.
Cheers, Hank
www.murrow.biz/hank
Ivor and Olive Lewis on thu 19 jan 06
Dear Gary Navarre, <
If Nickel has been identified by qualitative analysis then your friend =
may well be correct. If not then you could account for the nature of the =
deposit in several ways. If it is what you say then there might be gem =
grade material. This is currently valued at over $200 per Kilo for clean =
flawless material. The best stuff is passed of as Imperial Jade.=20
Best regards,
Ivor Lewis.
Redhill,
South Australia.
Gary Navarre on thu 19 jan 06
That's right, Hank, back to basic high school chemistry. I remember the
test, one in the reducing flame of the bunson burner and one in the
oxidation flame. Guess I'm gonna need to get that rock crusher from the guy
in Montana before the snow melts. Wonder if Peter Hayes has any old books
around with the color chart for results of the bead test. As I recall I did
pretty good in lab even if I didn't understand the chemistry.
G in da UP
Hank Murrow on thu 19 jan 06
On Jan 19, 2006, at 12:08 AM, Gary Navarre wrote:
> That's right, Hank, back to basic high school chemistry. I remember the
> test, one in the reducing flame of the bunson burner and one in the
> oxidation flame. Guess I'm gonna need to get that rock crusher from
> the guy
> in Montana before the snow melts.
Well, try the potters' dolly first, Gary. Take a 2" diameter pipe and
weld three or four small beads(say 1/16" or so around the mouth),
prepare a 1" diameter piece of steel rod(a foot or more longer than the
pipe), and place the pipe on a piece of steel plate(heavier the
better). Load the pipe with around an inch of rough pebble of calcined
rock and use the rod to pulverize the rock material against the steel
plate 'anvil' and the powder will fall out between the small beads you
welded on the pipe. Gosh it is tiring to try and describe this. Check
out Ian Currie's "Revealing Glazes" to see an illustration on page 128.
Very cheap to make, and surprisingly effective if only test quantities
are needed.
> Wonder if Peter Hayes has any old books
> around with the color chart for results of the bead test. As I recall
> I did
> pretty good in lab even if I didn't understand the chemistry.
There 'ya go, mate,
Hank in Eugene
www.murrow.biz/hank
Gary Navarre on fri 20 jan 06
On Thu, 19 Jan 2006 06:25:23 -0800, Hank Murrow wrote:
>On Jan 19, 2006, at 12:08 AM, Gary Navarre wrote:
>
>> That's right, Hank, back to basic high school chemistry. I remember the
>> test, one in the reducing flame of the bunson burner and one in the
>> oxidation flame. Guess I'm gonna need to get that rock crusher from
>> the guy
>> in Montana before the snow melts.
>
>Well, try the potters' dolly first, Gary. Take a 2" diameter pipe and
>weld three or four small beads(say 1/16" or so around the mouth),
>prepare a 1" diameter piece of steel rod(a foot or more longer than the
>pipe), and place the pipe on a piece of steel plate(heavier the
>better). Load the pipe with around an inch of rough pebble of calcined
>rock and use the rod to pulverize the rock material against the steel
>plate 'anvil' and the powder will fall out between the small beads you
>welded on the pipe. Gosh it is tiring to try and describe this.
I had to read it twice but I got it. Rick has the torches and I'm sure we
have some pipe around somewhere.
G in da U.P.
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