| Location | Main Location |
| Location Code | 427 |
| Manufacturer | Flinn Scientific |
| Product Code / UPC | Quantity 3 |
Identify minerals using these unglazed white or black porcelain plates. Simply rub the sample across the plate and observe the streak color. Use white plates for dark minerals; black plates for light minerals. Ideal 2" x 2" size for field or lab testing. Sold in packages of 10 plates.