Some Chalcedony specimens

Petra, ei kvinne på Island, har gjennom eit langt liv samla ei imponerande steinsamling i Stöðvarfjörður. Mellom alle dei flotte plassane eg besøkte medan eg var i Island, var denne steinsamlingane ein

Good morning my people!. I found this cool looking Chalcedony while taking an evening walk through a wash. It's fun to see the different wild life that take refuge in the cool sandy banks. From huge birds

Iam having a hard time on this one since iam an amateur rock collector, i will guess blend of chalcedony with quartz. Your friend Gama @skylines82

Lovers of minerals. I want to tell you about the amazing structure of minerals. These are dendrites (from the Greek δένδρον - tree) complex crystal structures of a tree-like branching structure. Dendrites

A dense emerald or apple-grassy green chrysoprase is the most valuable stone from the family of chalcedony. The descriptions of the chrysoprase mineral are found even in ancient sources (for example, in