With the Streak Plates for mineral testing in Earth science and environmental science, identify minerals using unglazed white or black porcelain plates. Ideal size for field or lab testing.
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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.