.jpg){kind=small}
Mineral Structure - Cleavage and Fracture Experiment
kit #402
This engaging activity is used to help students identify minerals by their physical properties of cleavage and fracture. Mineral samples (included) are used to show cleavage in one, two, three, four, and six directions. Other minerals in the kit are used to demonstrate the conchoidal and uneven properties of fracture. This is an excellent activity to follow up crystal structure or earth chemistry units.
- Identify minerals by physical properties of cleavage and fracture
- Sort samples by fracture and cleavage
- Determine angles between cleavage planes
- Understand the angular relationships between cleavage direction
- Correlate cleavage and fracture properties with commercial uses of these minerals
Content List in Mineral Structure - Cleavage and Fracture Experiment is as follows:
| Quantity | Description |
|---|---|
| 1 | Teachers Guide |
| 30 | Student Worksheets and Guides |
| 15 | Goniometers |
| 5 | Flourite specimens |
| 8 | Obsidian specimens |
| 8 | Serpentine specimens |
| 5 | Biotite mica specimens |
| 5 | Calcite specimens |
| 5 | Halite specimens |
| 5 | Hornblend specimens |
| 5 | Microcline feldspar specimens |
| 5 | Sphalerite specimens |
- Number of students
- 30
- Number of groups
- Maximum 15 groups per period
To complete this kit requires one ~50-minute class period.
