becke line story board

[@Pnasuta]

I've watched your video numerous times over the past year. It is very good - nicely done! Thanks for posting.

[@rafiquemohammad5345]

hello i have one doubt if u lowering microscope backe line moving towards high density region and at same when u raising the micrscope backe line moving away so actually same minerals could show double refractive indes? please answer me soon

[@andre997andre]

myslałem ze pokaze na mikroskopie