Gem Minerals
Gem Minerals, 15
Catalog # 470151-154
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Observe and compare gem minerals
Students observe and compare 15 colorful rough gem minerals which illustrate semi-precious stones having commercial value. Samples are approximately 1 1/2"" x 1 1/2""
The set is housed in a compartmented box with an identification list.
Specifications
- Description:Gem Minerals
- No. of samples:15