"orange de méthyle"

Yellow to orange crystal with a glassy luster and smooth, often transparent appearance.

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.

Specimens Illustrate Smooth Mineral Breakage

Clear examples of a key method of identification.

Himalayan mineral great for teaching and display.

Introduce your students to a broad selection of minerals.

Geometric Shapes and Structures of Crystalline Minerals.

Give Your Students a Lesson in Economics as Well as Geology

Explore the differences of how light interacts with the surface of a mineral.

Beginner’s Collection Illustrates Important Physical Properties