<div dir="ltr">Not clear to me what the chidush is in this article. The item they found
is not tzitzit. We already know that trunculus murex was used to
produce dye, based on archaeological evidence of dye factories with murex
shells.<br>
<br>
By the way, if you look up at the top of the sky, even at midday on a
sunny day, it is a relatively dark blue and not dissimilar to the colour of ptil tekhelet tizitzit. Pale "sky blue" is more what
you see looking straight ahead, at the sky near the horizon.<br><br>- Ilana<br></div>