Andy Dingley wrote:

There's a lot of colour variation in the world's walnuts and I've
never personally been a fan of the "stripey" nature of much US walnut
(judging it from photos of finished items). I've never seen any though
that I'd even describe as "pale", let alone "white".

Butternut is often described as "white walnut" - maybe that's what the OP was
talking about.

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It's turtles, all the way down