I finished spinning the red rock wool-silk yarn.
I had 50 grams. As I wound it off the bobbin I measured 410 metres. That's equivalent to my commercial laceweight yarn, so I'm reasonably happy with my result. And it's a sweet glossy soft, fine yarn. There was a fair bit of variation in the colour of the tops I bought. That has evened out to some extent with the spinning and plying, but it's still going to be a bit of a surprise as it knits up. Now I just need to decide what to do with it.