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4:1 Minerals
Properties of Minerals
Term | Definition |
---|---|
Mineral | a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition |
Fluorescence | the property of a mineral in which the mineral glows under ultraviolet light |
Mohs Hardness Scale | a scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals |
Streak | the color of a mineral’s powder |
Luster | the way a mineral reflects light from its surface |
Cleavage | a mineral’s ability to split easily along flat surfaces |
Fracture | the way a mineral looks when it breaks apart in an irregular way |