United Scientific™ STREAK PLATES
Pack of 10 unglazed white porcelain streak plates, each 1” x 2” in size. Designed to test hardness of rocks and minerals.
United Scientific™ STREAK PLATES
Pack of 10 unglazed white porcelain streak plates, each 1” x 2” in size. Designed to test hardness of rocks and minerals.
Color | White, Black |
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Size | 1" X 2" |