Ate these real if so what kind?

They look like imitation pearls, unfortunately.

I believe these are plastic ones, coated with a shimmering covering. If so, beads are not supposed to be gritty on tooth.

You can tell if they're plastic or glass by their weight. Plastic beads feel light. Glass beads feel heavier, more like the weight of real pearls, but they are still imitation. I don't actually see that many plastic pearls around; usually they are glass.