S16968 – Wurtzite

For Bolivia, this is an excellent crystal of wurtzite to 1.8 x 1.5 cm nicely elevated from quartz matrix. The mineral form is largely the attraction, a less frequently encountered form of sphalerite, its dimorph.

S15180 – Vauxite

This is an excellent and rare specimen of bright venetian-blue vauxite on a rosette of wurtzite from the famous tin deposit at Llallagua in Bolivia. These are very difficult to find on today’s market and this one is exquisite for what it is.