Galena on Siderite

The White Raven Mine has been in operation since 1913, extracting silver. An old stalactitic siderite specimen exhibiting two intersecting features, with small crystals of galena densely wrapping the back and feathering out towards the front. Hard to find material. Ex Jim and Paula Wilson.

Locality: White Raven Mine, Ward Mining District, Boulder County, Colorado

Composition: Iron carbonate and lead sulfide