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cK-12 Foundation. Mineral Identification. https://www.ck12.org/earth-science/Mineral-Identification/
Gizmos. https://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=640
S.A. Nelson, Tulane University. https://www.tulane.edu/~sanelson/eens211/physprop.htm

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Carbonate minerals (like calcite) react with acid, forming bubbles.

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What minerals are these? Did you guess that they're all the same mineral? Did you guess that they're diamond? Because they are. Color is one of the most useless properties when it comes to identifying minerals.

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If a mineral is softer than a ceramic plate, you can drag it across, creating a colored powder. This powder doesn't always match the color of the mineral!!

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Luster is how a mineral reflects light. Some minerals don't (dull, earthy luster), some are super shiny (metallic, glassy).

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If your mineral is magnetic... it's probably magnetite. (There are others, too.)

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Remember when you measured rocks for density? Minerals have characteristic density as well!

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You only have 5 minutes to identify 26 minerals, using the properties of: hardness, crystal structure, luster, acid reaction, and density. I only got three :(

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ExploreLearning : Get hands-on, minds-on in math and science

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Mineral Identification Gizmo : ExploreLearning

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Observe and measure the properties of a mineral sample, and then use a key to identify the mineral. Students can observe the color, luster, shape, density, hardness, streak, and reaction to acid for each mineral. There are 26 mineral samples to identify.

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You can use a variety of tools to assess hardness: fingernails, regular nails, glass, a penny, and other minerals.

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If a mineral doesn't have cleavage it has fracture. They break, but not cleanly.

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When a mineral breaks in clean planes. Not all minerals have cleavage.

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They have some good resources on mineral properties.