How to Identify Minerals By: (write your name) Draw a picture here.

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How to Identify Minerals By: (write your name) Draw a picture here

COLORLUSTER Definition: the way a mineral reflects light. Definition: the way a mineral reflects light. 3 Types of Luster: 3 Types of Luster: The same minerals can come in many colors due to impurities. Color is not the best way to identify minerals. MetallicSubmetallicNonmetallic ShinyDull but reflects Dull, glassy, fibrous, plastic-like, greasy, creamy, rough PURPLE

STREAK Definition: Definition: The color of powder left by a mineral. How do you find it? Rub the mineral across a streak plate(unglazed porcelain) CLEAVAGE & FRACTURE Cleavage: The splitting of a mineral along smooth and flat surfaces. Cleavage: The splitting of a mineral along smooth and flat surfaces. Fracture: Breaking of a mineral on uneven, curved, or irregular surfaces. Fracture: Breaking of a mineral on uneven, curved, or irregular surfaces.

HARDNESS Definition: Definition: The measure of a mineral’s ability to resist scratching. Mohs Scale of Hardness Mohs Scale of Hardness 1. Talc (softest) 2. Gypsum 3. Calcite 4. Fluorite 5. Apatite 6. Orthoclase 7. Quartz 8. Topaz 9. Corundum 10. Diamond (hardest) DENSITY Definition: The measure of how much matter is in a given amount of space. Definition: The measure of how much matter is in a given amount of space.

SPECIAL PROPERTIES 1. Fluorescence: glow in UV light 2. Chemical Reaction: bubble or fizz 3. Optical Properties: cause double image 4. Magnetism: attracts metal 5. Taste 6. Radioactivity: Gives off energy NO PAGE HERE

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