There was a lovely yarn shop at Dupont Circle called The Woolgatherer, and I haunted the sale bins there in my grad school days. There was a line of Rowan yarns, silk and wool, with subtle mixes of glorious colors, priced well above my reach. It was seductive on the shelf, and I bought odd dye lot skeins as they turned up in the sale basket. Sadly, these subtle skeins produced knitted fabric that was simply "brown," or in this case, "navy blue." Pairing it with other colors failed to awaken the colorful slubs and neps.
I've used it as a background for these odds and ends of mohair. I love knitting Fair Isle patterns, but the silk yarn is too inelastic to make comfortable socks that way. The simple pattens here are slip-stitch.