VivianiteThese Vivianite crystals have, without question, the best luster and often gemminess of any Vivianite specimens to date from this country, or virtually any other country. Another outstanding feature is the wonderful color contrast between the vivid emerald green of the Vivianite and the altered red sandstone matrix. These pieces have what I think is some of the best matrix for these crystals from Bolivia. It's not completely unstable like decomposing

these specimens are the first ever Hopeites from South America

rich emerald green color

jet-black group of “drill bit” twinned crystals is certainly fine quality for the species and the locality

very eye-catching crystal group with great form

the piece is in good shape

This piece must have hardened under ideal conditions as it has amazing clarity for a larger specimen

and I have not seen anything more like it since that time

This piece is a great thumbnail sized specimen of Carbonate-rich Hydroxylapatite with well-defined hexagonal form

Specimen # BOL711B206

The faces of the crystals are quite smooth

medium blue-green colored prism of Amazonite that has an unusual white colored "vein" running through the center of the crystal

This specimen has fine