| Term | Definition |
|---|
| Cleavage | When a mineral splits evenly along flat surfaces, like mica |
| Fracture | When a mineral shatters or crumbles (like it was hit with a hammer) quartz fractures |
| Taste | Halite tastes salty |
| Texture or feel | Talc feels slippery |
| Double refraction | produces double image |
| Reaction to acid | fizzes like Calcite |
| Magnetism | A natural magnet like lodestone |
| Electrical property | Pressure applied to the mineral makes electricity quartz in a watch |
| Flourescence | Glows under a black light (ultraviolet) |
| Radioactivity | Gives off gamma rays (uranium) that can be dangerous! Geiger counter |
Combine with other sets
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