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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 http://ravenscrag.com.

MaterialAmountPercent*Stat
Ravenscrag Slip55.051.4% 
Whiting10.09.3% 
Dolomite15.014.0% 
Ferro Frit 313410.09.3% 
Silica10.09.3% 
Cobalt Carbonate2.01.9%c
Rutile Ceramic5.04.7%v
 107.00  
* c-colorant, v-variegator, o-opacifier, s-suspender

Firing Schedule

Rate (F)Temp (F)Hold (Min)Step
100220601
300173302
1082175153
1502075304

Notes

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.

Ravenscrag high calcium blue on M340

Ravenscrag High Calcium Matte

Ravenscrag High Calcium Matte

Courtesy of Jonathan Kirkendall

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By Tony Hansen

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