Chapter 15: Problem 19

Suppose you found a rock you suspect might be a meteorite. Describe some of the things you could do to determine whether it was a meteorite or a "meteorwrong."

Short Answer

Expert verified

To determine if a rock is a meteorite, look for a fusion crust, check if it's magnetic, weigh the rock and observe its color and texture. Finally, seek expert advice for a definitive answer.

Step by step solution

Check for Fusion Crust

The first step in identifying a possible meteorite is to look for a fusion crust. A fusion crust is a thin, black, glassy coating on the surface of a meteorite which is formed by the extreme heat when it passes through the Earth's atmosphere.

Magnetic Properties

A strong indication that the rock could be a meteorite is its magnetic properties. As meteorites consist of a significant amount of iron, they are usually attracted to magnets. By using a magnet, a possible meteorite can be identified.

Weigh the Rock

Meteorites tend to be denser than ordinary rocks, so they will feel heavier than a regular rock of the same size. By weighing the rock, a possible meteorite can be further identified.

Observe the Color and Texture

Meteorites are often shinier than regular rocks and can sometimes have small holes or indentations. Their interior can be dark with small white or yellow minerals. This can give an indication if the rock is a meteorite.

Seek Expert Advice

If, after all those steps, there is still a suspicion of a meteorite, the best course of action is to take the rock to a local college or university's earth science or astronomy department, or contact an online group that specializes in meteorite identification. They can conduct more detailed tests and provide definitive answers.

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Suppose you found a rock you suspect might be a meteorite. Describe some of the things you could do to determine whether it was a meteorite or a "meteorwrong."

Short Answer

Step by step solution

Check for Fusion Crust

Magnetic Properties

Weigh the Rock

Observe the Color and Texture

Seek Expert Advice

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