Streak Plate Set of 30
Pack of 30 plates: 10 White porcelain, 10 Black porcelain, and 10 Glass.
Unglazed white and black porcelain tiles that are ideal for mineral streak testing. The streak test is essential in identifying minerals because it retains the original color of the material for examination. The glass tiles are excellent for testing mineral hardness. After scratching the tile plates, students can separate hard and soft minerals.
Porcelain Tile Dimensions: 2 x 1 Inch (50 x 25 mm)
Glass Tile Dimensions: 2 x 1 x 0.25 Inch (50 x 25 x 6.35mm)