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Black Streak Plate
This black streak plate is used for the streak test and hardness tests for minerals.
Our streak plates
are 2"x2" tiles
clean easily with soap and water for years of use
Classical Conversations Directors: This is the type of streak plate needed for Week 14's streak test experiment! It's flat on both sides so students can perform the test and streak-write their name on the other side.
Available in singles with a discount once you purchase 10.