Beautiful naturally purple fluorite octahedron crystals from China. These shapes happen naturally when the fluorite is 'cleaved' (aka broken), so the edges are not polished or perfect.  These pieces have some cool lines and color formations. A couple even look like watercolors.  On the video you will see them both in normal room light as well as each being shown with a backlight.  These are UV reactive and will glow a more vibrant purple.