Description
These 1/4″ thick black plates are excellent for testing minerals. After scratching the 1″x 2″ plates, students separate hard and soft minerals. Package of 10.
These 1/4″ thick black plates are excellent for testing minerals. After scratching the 1″x 2″ plates, students separate hard and soft minerals. Package of 10.
In Stock
Item 2035-21
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