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

Bright blue crystalline veins and coatings in a matrix of mixed copper ore.

Cut black mica cleavage sheets.

Good grade, bronze-colored ore, massive.

Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.

Good grade, brass-yellow copper ore, massive.

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.

Classic “peacock” aluminum ore.

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.

Pyroxene group; gray-green, coarse crystalline.

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.