Review on American Educational Investigating Collection Activity by Isaac Simpson

Promotional image needs correction. It shows a set with only igneous rocks, while the one you get is one that contains 4 igneous, 4 metamorphic, and 4 sedimentary, which worked for me but may not be suitable for someone expecting an only igneous set . The samples are of good size and come with very good study literature. I bought it because of the size of the stones, but if anyone is interested in the ROCK variant and samples of reasonable size and quality, I definitely recommend the American Educational 45 Piece Expanded Rock Collection instead, which I also purchased and sold for a lower price than that normally sold.