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Inside Earth 4:1
Ch. 4 Sec. 1 Properties of Minerals
| Question | Answer |
|---|---|
| mineral | a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition |
| Moh's hardness scale | a scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals |
| streak | The color of mineral's powder |
| luster | the way a mineral reflects light from it's surface |
| cleavage | a mineral's ability to spilt easily on flat surfaces |
| fracture | the way a mineral looks when it breaks apart in an irregular way |
| florescence | the property in which a the mineral glows unfer ultra violet light |