illustrated on page 25 of my book "Beads ...a collector's guide" i show a range of modelled beads in different colours made of some kind of pottery formula and then coloured to resemble coral, ammonite, turquoise, jasper etc. which are often used on relatively recent necklaces in the Moroccan style... and on page 63 many lookalike amber beads are shown, amongst them at least one of your type...