Roger Weller, geology instructor
firstname.lastname@example.org copyright 2011-R.Weller
tektite look-a-like, obsidian-5
thin slice of obsidian pebble
Unlike tektites, this slice of the obsidian pebble shows flat layering and the color is
distinctly gray compared to a dark brown with greenish tint found in australites and
indochinites. There are also microscopic magnetite crystals present.
Photo is copyright free for non-commercial
Just credit photo to R.Weller/Cochise College.