I recommend a Search on the topic of Islamic Period beads.

Here's a discussion related to various popular names/terms that supposedly refer to origin times and places:

http://beadcollector.net/cgi-bin/anyboard.cgi?fvp=/openforum/&cmd=iYz&aK=40428&iZz=40428&gV=0&kQz=&aO=1&iWz=0

It would be difficult to date your beads from a few photos. The problems of dating and sourcing randomly-spotted ancient glass beads can be taken back to the first issues of The Bead Journal in 1974.

JDA.