"Ward's® Thermochemistry In The Bag Inquiry Demonstration Activities"

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.

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.

Brown, earthy, massive; used for yellow pigment.

Black, high grade, foliated, greasy feel.

Deep blue, massive, with nepheline; key feldspathoid.

Feldspar group; calcium end member plagioclase crystals in pyroxene matrix.

Good grade, brass-yellow copper ore, massive.

Cleaned, pure, bright, metallic native copper.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.