***No reserve price collector's item*** Extremly rare kammererite mineral from Erzurum (Kop Dağları) of Turkey. Almost Every Side of the sample iş covered with kammererite Tiny crystal and this makes the offered sample much more rare. Exceptional sample suitable for collectors. Please check the photos for details. Kammererite is an extraordinarily rare, chromium-rich variety of clinochlore belonging to the chlorite mineral group. Shipping using best international companies with track and trace.