# Identify 15 Specimens

Part of the Geology Merit Badge Digital Resource Guide: [Introduction & Overview](https://merit-badge.university/merit-badges/geology/guide/index.md)

*4. Mineral Resources*

> **4c3b.** With your counselor's assistance, identify 15 different rocks and minerals. List the name of each specimen, tell whether it is a rock or mineral, and give the name of its class (if it is a rock) or list its identifying physical properties (if it is a mineral).

This option is about careful comparison. You do not need to own every specimen. You need to observe them closely enough to decide what they are and explain why.

## A Good Identification Routine

1. Decide whether the specimen is a **rock** or a **mineral**.
2. If it is a rock, ask which class it belongs to.
3. If it is a mineral, list the physical properties that support your identification.
4. Record your answer clearly in your notebook.

## Helpful Questions

- **Does it look like one mineral or a mixture?**
- **Are there visible layers, crystals, or foliation?**
- **What is the hardness?**
- **Does it show cleavage, fracture, or streak?**
- **What is the luster?**

> **Tip**
>
> If you are unsure, explain the clues you noticed instead of guessing confidently. Good geology often means being honest about the evidence you have.

## Official Resources

There is no official resource link for this page. Work directly with your counselor and the specimens available to you.

The next requirement takes mineral resources out of the collection box and into everyday infrastructure by looking at road-building materials.

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- Previous: [Build a 10-Specimen Collection](https://merit-badge.university/merit-badges/geology/guide/req4c3a/index.md)
- Next: [Road-Building Materials](https://merit-badge.university/merit-badges/geology/guide/req4c4/index.md)