GR10-B Ravenscrag transparent glaze (with 10 talc)

Wednesday 28th November 2012

Because this glaze employs 10% dolomite instead of 10% calcium carbonate it has a lower thermal expansion and is less likely to craze. While the dolomite is contributing MgO, which normally mattes glazes, there is not enough to do it here.

Pages that reference this post in the Digitalfire Reference Database:

Talc, Calcium Carbonate, MgO, GR10-B - Ravenscrag Cone 10R Gloss Base, The unexpected reason for this crazing can be seen in the chemistry, Add 5% calcium carbonate to a tenmoku. What happens?

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