Late beryllium enrichment during dynamic growth of vesuvianite and scapolite from the Cuonadong Sn-W-Be skarn, Tibet

•Texture and constituent of vesuvianite and scapolite show the staged growth associated with episodic fluid pulse.•Beryllium enters vesuvianite and scapolite by substitution, and the beryllium content changes with the varying solid-solution composition during dynamic skarn evolution.•The epitaxial increase in beryllium content under dynamic growth indicates the later pulsed fluid enriched Be as skarn developed.