8mm Schalenblende Plain Round Beads 5 inch 16 pieces AA rare

Schalenblende plain round beads present as an opaque banded formation polished to reveal concentric Sphalerite and Wurtzite with metallic areas of Galena. Schalenblende consists of alternating bands of brown-yellow sphalerite, brunckite, Wurtzite, and lustrous Galena of Which Sphalerite and Wurtzite are fluorescent in UV light. These beads are symmetrical and have bountiful areas of metallic grey and banded golden yellow and brown hues. AA Rare gemstone mined in Poland.