Sphalerite on Siderite

Sphalerite on SideriteFrom my own personal collection, this cabinet sized display specimen is a quintessential Gilman sulfide carbonate association piece. Several remarkably sharp AND lustrous crystals of jet 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

The largest crystal measures 1

and the robust crystals with their sharp

This specimen features beautiful lustrous

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 Brookites are undamaged and superb quality for the species

an ant-like stone beetle (Scydmaenidae) and caddisflies (Trichoptera)

golden tetragonal scalenohedron of Chalcopyrite sits in the center of a plate of grey-white Quartz “needles”

Superb condition overall

Great shape overall

antimony sulfide

and despite their smaller size

BETTER in person