Also, please upload the photos as attachments (Go advanced and use the "Manage Attachments" button to add photos to your post) --or put them in your album and use the image link-- rather than just linking to a hosting site. That way, the photos will not be lost if they are ever deleted from the hosting site.
I have an assortment of fakes -- good ones (Majorica) that I enjoy wearing occasionally, some really bad ones (my daughter needed them for props in school plays) and some in-between ones that I don't wear but just haven't dumped for whatever reason.
Majorica imitation pearls have an opalescent glass bead inside and are heavier than pearls with a shell bead.
Here are some Majorica photos:
top left: 10mm white 18 inch strand of Majorica, neck shot
top right: same strand in my hand, daylight near open door
bottom left: same strand close up (Majoricas, especially white ones, normally show a red and green pseudo-orient but these are redder-looking than usual, due to reflection from our red front door)
bottom right: 9mm cream colored Majorica 16 inch strand
I have more Majorica strands, different lengths and sizes, but they are all cream or white. I'll take some photos of other, non-branded imitation strands and post them in the next few days.