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cobalt green and good thoughts

updated tue 26 dec 00


Janet Kaiser on mon 25 dec 00

As you all know, I am not a practising potter
these days, but in answer to your question Ivor,
I suspect it is the Rutile. Very pleasing
yellows can be produced by Rutile (especially in
oxidation), so combined with Cobalt they could
no doubt produce a green.

But I will look forward to hearing what others
have to say as well as Alisa's experiments and
tests. Isn't she amazing? I publicly take my hat
off to your dedication Alisa. And your kindness
in sharing the results with us all.

Janet Kaiser

P.S. Nadolig Llawen . Frohe Weihnachten . Joyeux
Noel . Merry Christmas everyone! It is already
over for Ivor, Feri, Michael B., Maggie and all
Down Under or Out East like Lee L. and Heidrun
S. The sun is setting here and yet some of you
are only now rolling out of bed on Christmas

Eckhard and I have listened to the Queen's
Christmas Message to the Commonwealth at 15.00
hrs GMT and we just drank our traditional Health
to Her Majesty, to friends near and far and
those no longer with us. I sent messages to
friends and foes alike at 2 a.m. this morning,
following a wonderful International evening of
carol singing and carousing. How wonderful it is
to be part of the human family.

Feast Days like Christmas, Hanukkah, Ramadan,
Winter Solstice and so on focus ones thoughts...
How silly to believe in boundaries and borders
(political, geographical, religious or economic)
when the world is such a small place and we are
just simple individuals. Respect for everyone
folks! And may Heddwch . Peace . Frieden be with
you all this millennium Christmas and through
the coming year.

The Chapel of Art . Capel Celfyddyd
Criccieth LL52 0EA, GB-Wales Tel: (01766) 523570

----- Original Message -----

Alisa wrote, relating to cobalt in conjunction
with a rutile/cobalt/ballclay slip on a dolomite
glaze blue to violet to green.>

Thanks for that clue to this elusive effect. I
have known for a long time that a Cobalt green
is possible. Now can this be explained. Is it
the mixture of Magnesium and Calcium, or one of
these independently, is it the Rutile. Or is it
either the additional Aluminium or Silicon from
your ball clay. Or is there something in the
ball clay which is causing the green to emerge.

An interesting mystery. Is this cone 6