| A | B |
|---|
| luster | the way a mineral reflects light |
| hardness | a minerals resistance to being scratched |
| cleavage | breaking along smooth flat surfaces |
| color | describes the color of a sample |
| fracture | an irregular breakage pattern |
| streak | the powder of a mineral on an unglazed porcelain plate |
| specific gravity | compares the minerals weight to an equal volume of water |
| fluorescent | glowing while under UV light (ex: willemite) |
| radioactivity | subatomic particles given off by the mineral (Ex: Carnotite) |
| double refraction | two images viewed through Iceland Spar crystals |
| magnetic | iron rich minerals that are attracted by a magnet |
| HCL acid test | carbonate minerals may react with hydrochloric acid |
