SciEd Mohs Hardness Scale Lens diameter: 21mm

Lens diameter: 21mm

Max overload voltage: 200V

3 ranges Features

Diode (→): Open voltage 3

Note: Do not discard the user manual as it contains a QR code that can be scanned in some apps for calibration purposes

SciEd Mohs Hardness Scale Lens diameter: 21mmMoh'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