"The Mystery of Lyle and Louise"

Light pink, massive, crystalline, translucent.

Light gray, compact, hard, opaque, microcrystalline silica mineral.

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

Brown, fluorescent crystals intergrown in dolomite rock.

Bundle and save on these cosmic wonders.