Sphalerite on Siderite Anhydrite The blending of both the

The blending of both the euhedral crystals with their defined geometric form against the free-flowing

This specimen was mined in the late 1970’s / early 1980’s

No damage on the top / display side of the piece

this one is in great shape and displays well from a few angles

This sharp

Sphalerite on Siderite Anhydrite The blending of both theFrom my own personal collection, this cabinet sized display specimen is a quintessential Gilman sulfide carbonate association piece. Several remarkably sharp AND lustrous crystals of reddish black Sphalerite with notably SMOOTH faces hardly any striations at all on many faces are gently intermixed and sitting atop a crystallized plate of soft beige cream colored compressed rhombohedra or discs of Siderite. The piece was mined in 1978, and I actually