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Product Catalog > School Kits & Accessories  > Black Streak Plates - Set of 5

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Black Streak Plates - Set of 5   Price: $11.99 Qty: View Shopping Cart

Black porcelain streak plates are great for testing minerals. Often, the color of the mineral's streak is a clue as to the identification of the mineral. To perform the test, rub the mineral on the plate and observe the color. The streak is the color of the mineral in powder form. Many minerals have a streak that is the same as its outward appearance; however, some streaks are very different colors! Black streak plates are great for light colored samples. Each streak plate is 1” x 2”.

Safety Warnings
WARNING: CHOKING HAZARD Small Parts. Not for children under 3 years.
May have sharp edges.