"Geology and Earth Science Clearance"

Feldspar group; white-to-gray cleavages of sodic plagioclase; some show twinning.

Massive sedimentary gypsum with a moh's hardness 2..

Obsidian is hard black colored, volcanic glass.

Lets You Control Location and Depth of Measurements

Includes Simulated Martian Soil, as Used in NASA Studies.

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.

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.

Scoria is a dark-colored rock formed from lava with a high gas content.

Gray metamorphosed shale showing "slaty cleavage".

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.

Look at the world's precipitation, winds, and temperature, as well as a full-color view of each climate. Poster features full color graphical depictions of world heat distribution with explainations of thermal groups, the climatic zones, annual precipitation, atmospheric circulation, average temperature at different latitudes, and sun ray angle.

Sale

Own a carbonaceous chondrite!

Ptolemaic Planetary System Model.

The 2-ply Boot foot Hipper is a rugged and classic poly rubber hip boot design.

Introduce your students to Gray Andesite with large phenocrysts of hornblende.

Limestone is a gray calcium carbonate that will fizz with dilute HCl.