"bouteille de gaz"

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.

Glossy green dunite (olivine) inclusion in non-genetically related basalt. Average size: 3" x 4".

Examples of the most basic rocks and rock-forming minerals.

Define and compare ways organisms have been preserved.

Great value for the microscopic study of Pyroxene minerals

Specially selected thin sections of important rock forming minerals. Set may contain more than one example of the same mineral to depict variations in occurrence and distinct mineral associations.

Slides (12): actinolite, anthophyllite, cummingtonite, ferrohornblende, fluoredenite, glaucophane, grunerite, hexagonite, kaersutite, magnesiohornblende, riebeckite, tremolite.

A fascinating and colorful classroom study set.

Shows porphyritic texture in a fine dark matrix abundant large feldspar phenocrysts. Hand specimen.

Geometric Shapes and Structures of Crystalline Minerals.

Give Your Students a Lesson in Economics as Well as Geology