Home > cone 10, shino > John Britt’s Moon Rocks Carbon Trap Shino Cone 10 –J Shiloh Gastello

John Britt’s Moon Rocks Carbon Trap Shino Cone 10 –J Shiloh Gastello

■Spodumene – 38

■Custer Feldspar – 45.7

■Kaolin – 6.3

■Soda Ash – 10 1.

This looks like an interesting glaze to experiment with. Since most of the Spodumene used today has less than 1% iron in it, using new forms of Spodumene from Australia and Canada will change the look of the glaze.

2.To substitute the look of the older higher iron Spodumene, you can use an iron bearing clay such as Redart or Barnard Slip.If you do not have Spodumene, then Amblygonite can be used although it will produce a different look.

3.The Amblygonite has a higher percentage of lithium oxide, which helps the glaze to start melting at a lower temperature. Also, because Amblygonite has a lower expansion and contraction rate, it helps counteract crazing normally found in high sodium oxide glazes. Give it a try and see what transpires. 🙂

4.The above image is reduced on Porcelain over another Shino called Dolly’s Russian Hotel also found in John Britt’s book entitled: The complete guide to high-fire glazes.

 

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