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Some minerals leave a colored streak on unglazed tile, providing a clue to identifying that mineral. Examples of this property can be demonstrated with this collection. The 8 specimens are approximately 1”x 1-1/2” and are number-coded. The kit includes both dark and light streak plates.
Some minerals leave a colored streak on unglazed tile, providing a clue to identifying that mineral. Examples of this property can be demonstrated with this collection. The 8 specimens are approximately 1”x 1-1/2” and are number-coded. The kit includes both dark and light streak plates.
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