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+.
