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help: petalite--source of lepidolite?

updated tue 2 may 00

 

NakedClay@aol.com on mon 1 may 00

Hi Gail!

As a long-time user of lepidolite-based glazes, I've been informed that this
ingredient is no longer available. Where does one acquire Lepidolite these
days?

Indeed, lepidolite is a florine-based ingredient, but it's cratering effect
is somewhat less blatent than cryolite, also a florine substance. In my
experience, lepidolite helps soften the gloss of a glaze, creating a "stony"
appearance to the glaze.

As a substitute for lepidolite, you might consider using spodumine. There's
no florine in spodumine, but the lithium content is about the same as in
lepidolite.

Happy glazing!

Milton NakedClay@AOL.COM

Coming to you from windy, hot, and dusty Yucca Valley, CA.