I have this yarn sitting in my basket for so long, I can't even recall what sort of mix it was. The only thing I am sure about is that it is a silk mix, bit that as far as it goes. I tried searching, but can't find anything that rings a bell.
!And Kirill managed to find it! It's "sea silk" by handmaiden fine yarns, 70% Silk, 30% Seacell 400 m, 100 g.
Anyway. It's a thin soft shiny yarn, warm to touch, dyed in a shortish sections of raspberry, purple, green and blue, so it's quite a large spread of colors. Overall effect it's more or less dark blue. From the website it looks like that particular set of colors is not done any more.
I tried different types of stitches, but in the end went for simplest all-knit - more complicated stitches didn't go well with the yarn.
As a nice little bonus, and unexpectedly for me, the short sections did form two "pools". They formed in two places where the width of the scarf is about fifteen cm, and disappeared naturally as the baktus triangle widened/narrowed.