+++++++++++++++++++++++++++++
+++   Glossy Base 1 #17   +++
+++++++++++++++++++++++++++++

Date:           12/31/10

                   EPK   1810        18.1%    
                 G-200   2300        23  %    
             Frit 3134   2300        23  %    
          Wollastonite   1150        11.5%    
                  Talc   1320        13.2%    
                 Flint   1120        11.2%    
                        --------    ------     
                        10000       100  %    

      Cobalt carbonate     75         0.8%    
    Black nickel oxide     33         0.3%    
                Rutile    600         6  %    

Notes:
  This is glaze 17 from the Ian Curie grid I made using the fluxes
  in glossy base 1 from the book Mastering Cone 6 glazes by John
  Hesselberth and Ron Roy.

===========================
     Chemical Analysis     
===========================

           Na2O   0.13         Al2O3   0.31          SiO2   2.67
            K2O   0.07          B2O3   0.21          TiO2   0.18
            MgO   0.29                              Fe2O3   0.01
            CaO   0.48                                          
            CoO   0.02                                          
            NiO   0.01                                          

   Alumina:Silica ratio is   1.00 : 8.56
   Neutral:Acid ratio is     1.00 : 5.54
   Alkali:Neutral:Acid ratio is  1.00 : 0.52 : 2.86

Expansion coefficient: 73.0 x 10e-7 per degree C
Oxides causing abnormal expansion effects: B2O3

This glaze comes from John Post at http://www.johnpost.us/