SIDERITE from Washington State
FeCO3


 
GOETHITE pseudomorph after SIDERITE on QUARTZ
Clipper View Claim
 
Red SPHALERITE on SIDERITE
Dutch Miller Gap
 
Rhombohedral SIDERITE with amorphous iron silicate (yellow)
Golden Horn Batholith
 
Rods of SIDERITE intergrown within a basalt amygdule.
Walker Valley