stdenis_jd
Hero Member
Curious to see some opinions on this one. Found it in a gravel pit in North central lower peninsula of Michigan. It's the green one, can post pics of a slab if it is helpful. My first thought was a form of serpentine, but I don't have any first hand experience ID'ing it sinc
e I've never seen anything like it around here (gotta love dem glaciers!)
Grainy texture
Somewhat conchoidal fracturing, leaning toward his an uneven fracture pattern.
Hardness is about 6.
Fairly heavy/dense, solid build (no natural pitting or irregularities).
Opaque, no translucency.
It's looking like it will take a fantastic shine too, love the black stripes in it :-)
P.S. the black ones are mahogany obsidian, pink is Kona dolomite, red & white are Michigan puddingstone (jasper & white quartz sand conglomerate), and green/blue is chrysocolla)
e I've never seen anything like it around here (gotta love dem glaciers!)Grainy texture
Somewhat conchoidal fracturing, leaning toward his an uneven fracture pattern.
Hardness is about 6.
Fairly heavy/dense, solid build (no natural pitting or irregularities).
Opaque, no translucency.
It's looking like it will take a fantastic shine too, love the black stripes in it :-)
P.S. the black ones are mahogany obsidian, pink is Kona dolomite, red & white are Michigan puddingstone (jasper & white quartz sand conglomerate), and green/blue is chrysocolla)
