Thin section photograph of Karlsbad Pisoid
Thin section photograph of aragonitic pisoids with fringes of acicular aragonitic cement and large open pores. The rock is called "Karlsbad Sprudelstein"; it precipitated in hot, mineral-rich springs situated along tectonic faults (crossed polars; width of picture is 1.4cm; Karlovy Vary, Czech Republic).
Taken on 10
Submitted on 08 February 2018
Credit: Axel Munnecke (distributed via imaggeo.egu.eu)
Click to appreciate