ARAGONITE from Washington State
CaCO3


 
CALCITE flat rhombohedra on CALCITE pseudomorphs after prismatic ARAGONITE
Cadman Quarry
 
CALCITE and QUARTZ with (CALCITE + QUARTZ) pseudomorphs aft ARAGONITE
Cadman Quarry
 
CALCITE and QUARTZ pseudomorph after ARAGONITE
Cadman Quarry