"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.

Specimens Illustrate Smooth Mineral Breakage

Clear examples of a key method of identification.

Himalayan mineral great for teaching and display.

Deformed pebbles in a metamorphased conglomerate. Large sawed and lacquered specimen.

Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.

Cut and finished samples with fiberoptic samples.