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Ravenscrag Cone 6 High Calcium Matte Blue

Code: g2851H
Modification Date: 2016-09-30 22:46:36
Member of Group: RV6

Plainsman Cone 6 Ravenscrag Slip based glaze. It can be found among others at

Ravenscrag Slip55.051.4% 
Ferro Frit 313410.09.3% 
Cobalt Carbonate2.01.9%c
Rutile Ceramic5.04.7%v
* c-colorant, v-variegator, o-opacifier, s-suspender

Firing Schedule

Rate (F)Temp (F)Hold (Min)Step


This glaze is temperature sensitive. It requires a slow cool down to allow crystals to grow. If the kiln cools too quickly you will get a glossy glaze. Has a nice soft smooth surface, with a variegated light blue color.

This base will also work well with other coloring oxides/stains. It is temperature sensitive and should be fired to cone 6.

Out Bound Links

XML to Paste Into Insight

<?xml version="1.0"?>
<recipes version="1.0" encoding="UTF-8">
<recipe name="Ravenscrag Cone 6 High Calcium Matte Blue" keywords="Plainsman Cone 6 Ravenscrag Slip based glaze. It can be found among others at" id="55" date="2016-09-30" codenum="g2851H">
<recipeline material="Ravenscrag Slip" amount="55.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Whiting" amount="10.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Dolomite" amount="15.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Ferro Frit 3134" amount="10.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Silica" amount="10.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Cobalt Carbonate" amount="2.000" unitabbr="g" conversion="0.0010" added="0"/>
<recipeline material="Rutile Ceramic" amount="5.000" unitabbr="g" conversion="0.0010" added="0"/>
<url url="" descrip="Recipe page at"/>

By Tony Hansen

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