Re: Anatase present in many Ancient artifacts as well

I.E_Johansson wrote:  gwy8e.22105$d5.162724@xxxxxxxxxxxxxxx,

Feldspars (albite and microcline) are frequent in ceramic fragments
with sand and feldspar tempers. Illite, hematite, maghemite,
goethite, and anatase are found in low quantities for all ceramic
fragment tempers. "

http://acta.inpa.gov.br/fasciulos_base/34-3/html/BODY/v34n3a04.html

By recording the Raman spectra in the range 100900 cm 1 of both
natural (local) bauxite and a white coating, it was found that
bauxite was used to make the white pigment for the Bancun pottery,
while anatase was found to be the white pigment for the
sherds. It is known that bauxite mineral consists mainly of aluminium
hydroxide, but with small and variable amounts of silica, alumina
silicate clays, iron oxides and titanium oxides. Bauxite exits in
many varieties, but boehmite, AlO(OH), and diaspore, -AlO(OH), are
the major constituents of Greek bauxite. "


http://www.blackwell-synergy.com/links/doi/10.1111/j.1475-4754.2004.00176.x/
full/

For information about anatase in Medieval(and earlier) ink please
read the urls I sent the other week more carefully. One of the type
of inks where anatase is present in Medieval ink falls under the
category 'Chinese ink'. To which sometimes here in Europe coal from
fireplaces was added together with animal fat - could be gelantin or
lard.

Inger,
Why are you starting a thread like this if you have noting to offer
but anaqstase in pottery?
The two links here and your quotes from them have nothing to do
whith writing ink.
The links you gave earlier (8 april 2005 8:53) are nothing new and
nothing special.
One Swedish about conservation. Please tell us what  is "more than
interesting for the present debate regarding VM and other medieval
documents".Also the other four are nothing special. Only normal recipes
for iron-gall inks.
Where is the anatase in inks and where is your famous sand?

--
- Peter Alaca -




.

Relevant Pages

  • Scholars and Theory of Science former Re: The Vinland Maps Ink
    ... Ink that hasn't been completely blended. ... - BUT the assumption that the anatase couldn't have been made before 1920's ... "Mineral grains from the Kirkland soil. ... Potassium feldspar sand grain. ...
    (sci.archaeology)
  • Re: More anatase myth killing. Re: More anatase
    ... The anatase is exactly in the form it should be to be Medieval. ... exist in the water-washed sand which was filtered to be used as ink-dryer. ... Medieval Ink used in monestries used to have a stabilisator added to the ink ... say that the anatase comes from natural mineral sand and nothing else. ...
    (sci.archaeology)
  • Anatase present in many Ancient artifacts as well
    ... sand and feldspar tempers. ... anatase are found in low quantities for all ceramic fragment tempers. ... bauxite and a white coating, it was found that bauxite was used to ... For information about anatase in Medievalink please read the ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... You wrote about anatase elsewhere... ... "Need I really remind you all that the Alp sand used to dry ink and the ... If we see the Alp anatase in the ink, why don't we also see the Alp ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... If we see the Alp anatase in the ink, why don't we also see the Alp ... that one sees the anatase but not the sand that is sprinkled on the ink ...
    (sci.archaeology)
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