Monday, April 6, 2026

clay: rutile coil pot

Clay Body: Laguna's Bmix 10 (Smooth)

Glaze: Rutile or cone 10 glaze

Method/Firing: Coil built/Cone 10 Reduction

Had I known how dark the rutile would turn out, I might have just glazed this pot white.
I was expecting a creamy oatmeal color with a subtle mottling of pink, lavender and light blue--not the dark purple I see above. From Ceramics Monthly:
Rutile is that unbelievably beautiful glaze additive that produces colors ranging from light and dark blue, to tan, gold, yellow, and even purple. It also produces a range of crystal formations. It seems to behave however it chooses, depending on the glaze base and the firing conditions. After a number of inconsistent glaze batches, old ceramic hands learn to test their new batches of rutile before committing to a full 5-gallon bucket of glaze. Furthermore, it is not uncommon to hear of studio ceramic artists purchasing multiple 50-pound bags of rutile such that their glaze will be consistent for at least a few years. These phenomena all come down to one thing with rutile: inconsistency. Rutile is a mined colorant, and as such, its makeup depends on the mine source. As mines are exhausted or businesses open and close, rutile sources change—often too frequently. The problem here is that rutile isn’t just a metal oxide or carbonate; it is a blend of three or four of them. While it is sold as light or dark rutile, the complexity and chemistry of the colorant is far more convoluted than its sale description would suggest, as seen in various natural rutile sources (1).
I had loved this pot in its greenware and bisque form. I suppose I'll make it again. 
A couple people have said they love the pot, and the vase is growing on me. It does coordinate with the plant pots I have.

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