"WardsSci000478"

Light gray, earthy.

Large, black, rounded tektite, 1 1/2". Thailand.

Examples of the More Important Minerals Found in Rocks

Sale

Brownish gray, kerogen-rich; commercial oil source.

This combination unit indicates the inside and outside temperatures and the indoor humidity.

Rubber stamp the real weather on a given day or what the students would like the weather to be. With this set of 12 different high quality stamps, learn about the changing weather patterns.

Measure relative humidity with weather bureau-type wet and dry bulb thermometers. Pocket-sized psychrometer is perfect for student use, as it presents no mercury hazards.

Sale

Survey set improves student's recognition of all three major rock groups.

Gray-to-brown basaltic, with over 50% vesicles.

Sale

Unpolished metamorphic rock with silky lusture, red-brown colour, and clear parallel intergrown quartz crystals.

Sale