Glass Plates - 10 pack - Image one
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These 1/4 inch thick glass plates are ideal for testing the hardness or softness of minerals. By scratching the mineral in question against the plates, students or teachers can determine these properties by observing the quantity of residue left behind. Excellent for use in the classroom, or at home for aspiring geologists.
Features:
- 10 glass plates
- Each plate is 2 x 1 x 0.25 inches
- Classroom or lab ready
9 +
2.25 x 2.00 x 1.00 inches
5.72cm x 5.08cm x 2.54cm
0 lb 7 oz
0.18 kg
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