
- Moh's Hardness Scale was developed nearly 200 years ago by Friedrich Mohs and is used to classify minerals by hardness on a scale of 1 to 10.
- With the materials included, your students will have everything they need to determine and study the hardness of minerals. Featured are card-mounted mineral specimens representing hardness for scales 1 through 9 that can be used as reference when testing unknown samples.
- Also included are additional activities that allow your class to test for other key mineral properties.
Product Dimensions (L x W x H): x 221 x MM
Product Weight: 1 LB