Dioptase - Specimen fire opal oregon The banding seen in this

The banding seen in this piece reflects changes in chemical conditions during growth

this Caribbean Calcite bead bracelet looks like a miniature beach vacation wrapped around your wrist

5cm x 1cm - 2

sphalerite

Dioptase - Specimen fire opal oregon The banding seen in thisMined from: Renville, Pool Malebo area, Kongo Central, Democratic Republic of the Congo Description: This one of a kind dioptase specimen has a more open crystal habit than the previous pieces, with individual crystals standing out clearly from the dark matrix. The color is a vivid blue green with strong transparency in several points, and the larger crystals rise prominently above a dense bed of smaller growth. The contrast here is especially strong: