Product Overview
These 1" x 2" unglazed porcelain tiles are ideal for streak testing minerals. The streak test is essential in mineral identification because it retains the color of the mineral. Package of 10. Grades 4+, Ages 9+.
These 1" x 2" unglazed porcelain tiles are ideal for streak testing minerals. The streak test is essential in mineral identification because it retains the color of the mineral. Package of 10. Grades 4+, Ages 9+.
