Strand (200+) Opalite Gemstone Chips 5-8mm

I ordered Opalite chips, not rock crystal chips (or clear glass - hard to tell). The Opalite chips/square cut beads are lovely; there's just not enough of them. Less than1/2 the strand are Opalite chips/beads. I'm not sure why they're not all Opalite since it's a manufactured stone and not natural (should be cheaper, no?). Anyhow, it's disappointing. The other stones from this dealer are 100% as advertised.

Good value for money, there are certainly some good quality stones in there, but I suspect a lot of them are just glass