A chart of Mohs hardness scale with pictures of minerals at each level of hardness.

Instructional module focusing on the physical properties of minerals. Discussion includes the identifying characteristics such as color, hardness, luster, crystal forms, density, and cleavage. Site also includes an interactive practice...

Identifying a mineral by hardness? This website explains how to use the Mohs' hardness scale and provides examples.

A fact card describing the physical and chemical characteristics of anhydrite and gypsum, where they can be found in Indiana, what they are used for, their chemical structures, and where they fit on Mohs hardness scale.

Find an illustrated explanation of the Mohs' hardness scale, which is used to compare the hardness of minerals. The scale explains the differences in hardness among a range of minerals, beginning with the softest (talc) and ending with...

[Free Registration/Login may be required to access all resource tools.] Classifying minerals based on physical characteristics.

[Free Registration/Login may be required to access all resource tools.] Classifying minerals based on physical characteristics.

This set of lesson plans was developed to accompany Ground Rules: Mining Right for a Sustainable Future, a documentary film created by Caterpillar and Science North. They introduce students to the various phases involved in mining,...

During your lifetime, you will use more than a million pounds of rocks, minerals, and metals. Dig through this web site and find out how.

A fact card describing the properties and characteristics of pyrite, where it is found, its effects on its immediate environment, its chemical structure, and where it fits on Mohs hardness scale.

Learn how to test a material by using the five main properties of minerals to identify it at this interactive site.

[Free Registration/Login Required] An informational text about mass and its properties. A question sheet is available to help students build skills in reading comprehension.