LAUMONTITE from Washington State
CaAl2Si4O12 . 4H2O


 
STILBITE and a white spray of dehydrated LAUMONTITE (LEONHARDITE) on CHLORITE
Lucky Strike Pit (Manke Pit)
 
Rhombohedral CALCITE on dehydrated LAUMONTITE (LEONHARDITE)
Port Ludlow Area Quarry
 
STILBITE and dehydrated LAUMONTITE (LEONHARDITE)
Port Ludlow Area Quarry
 
Dehydrated LAUMONTITE (LEONHARDITE) on CALCITE
Port Ludlow Area Quarry