Recognizing a meteorite often involves checking for specific physical characteristics related to its density, magnetic properties, and shape.
Key Characteristics for Meteorite Identification
When you suspect you've found a meteorite, consider the following indicators:
1. Density
Meteorites are typically much heavier for their size than common terrestrial rocks. This is because they contain dense components such as metallic iron and various other heavy minerals. If a rock feels unusually weighty in your hand compared to its volume, it could be a significant sign.
2. Magnetism
Most meteorites contain metallic iron, which makes them magnetic. A simple test is to see if a strong magnet, like one found on a refrigerator, will stick to the specimen. If a magnet strongly adheres to the rock, it's a good indicator.
3. Shape
The shape of a potential meteorite can also provide clues. Notably, iron-nickel meteorites are rarely rounded; they tend to have irregular or angular forms rather than smooth, spherical shapes.
Summary of Meteorite Characteristics
To quickly assess a potential meteorite, refer to the table below:
| Characteristic | Description |
|---|---|
| Density | Unusually heavy for its size due to metallic iron and dense minerals. |
| Magnetism | Often magnetic; a magnet will typically stick to it due to the presence of metallic iron. |
| Shape | Iron-nickel meteorites are generally not rounded, exhibiting more irregular or angular forms. |
