May 23, 2017
Paulingite-Ca
(Ca,K,Na,Ba,◻)10(Si,Al)42O84·34H2O
Locality:
Vinařice, Kladno, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
Field of View: 6 mm
Colourless and transparent Paulingite-Ca rhombic dodecahedrons.
Collection and photo Stephan Wolfsried
Paulingite is a rare zeolite mineral that is found in vesicles in the basaltic rocks. The early formation in the crystallisation sequence and the high water content suggest that paulingite forms from relatively dilute pore fluids.
