Chromium Petrified Tree Wood (Conifer-Araucarioxylon Arizonicum), The wood has been replaced with mineralized chromium, giving it its green color. It originates from the Chinle formation, Triassic Period (180 MYA) Winslow, Arizona, USA, very rare specimen
Cobaltite, Hakansboda, Lindesberg, Västmanland, Sweden
Assorted Semi-Precious Gemstones
