"The Mystery of Lyle and Louise"

Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.

Nearly pure, green crystalline forsterite.

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.

Himalayan mineral great for teaching and display.

Red, classic oolitic texture.

Spinel group; black, dull metallic luster; common iron oxide.

Brownish gray, translucent.

Utah

Bundle and save on these cosmic wonders.