| A | B |
|---|
| luster | the way in which a mineral reflects light |
| streak | the color of the powder of a mineral |
| cleavage | the splitting of a mineral along smooth, flat surfaces |
| fracture | the manner in which a mineral breaks along either curved or irregular surfaces |
| hardness | a measure of the ability of a mineral to resist scratching |
| density | the ratio of the mass of a substance to the volume of the substance |
| Moh's hardness scale | determines the hardness of minerals |
| types of mineral luster | metallic, submetallic, or nonmetallic luster |
