Glass Streak Plates 2″ x 1″ x 1/4″ [Pack of 10]

Used for hardness testing of rocks and minerals, these 1/4″ thick glass plates comes in packs of 10. These 10 glass streak plates are great for classroom and lab decorations. To use these streak plates simply scratch specimens on the plates to identify hard and soft minerals.

Features

• Glass streak plates kit for testing minerals
• Specimens scratched on plates to identify hard and soft minerals
• Plates measure 1.0 x 2.0 inches (W x L), with 1/4″ thickness
• 10 plates per pack
• Useful for demonstrations in identifying and classifying rocks and minerals