| A | B |
|---|
| cleavage | splitting of mineral into pieces with smoot, flat surfaces |
| density | amount of matter in a given volume |
| fracture | splitting of mineral into pieces with uneven surfaces |
| hardness | property of a mineral to resist being scratched |
| luster | way a mineral reflects light from its surface |
| streak | color of the powder left by a mineral |
| Mohs Scale of Hardness | chart that organizes minerals' ability to be scratched by another mineral |
| acid test | use of a weak acid solution to see if a sample contains calcium carbonate |
| double refraction | unusual property of bending light rays as they pass through a sample to produce two images |
| metallic | type of luster that shines like metal |
| nonmetallic | other types of luster that include pearly, dull, or glassy |
