4-Fluorescence and Chrystals

    Fluorescence: If a mineral that contains the property of fluorescence is subjected to ultra violet light, it will appear to “fluoresce”. Under normal light, it would appear like any other rock/mineral. Some examples are willemite, fluorite, and calcite. Below are two images: one of willemite under normal light, and one of fluorite under ultraviolet light.

    Crystals: Some minerals are found in the shape of crystals have straight edges, flat sides and regular angles. Some are soluble in water, while others are not. Every mineral has its own specific shape, while some can be seen with a magnifying glass, or with-out. Below is an image off a crystallized pyrite.

   Back to "Classifying Minerals and Rocks"

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