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My son has really enjoyed this product and I like that it comes with a pamphlet that describes the different kinds of rocks. The container that the rocks came in has a few cracks on the bottom, however it is still very much usable.Saturday, December 13, 2014
Discount GeoCentral Box of Rocks Kit
Good, but not perfect. Some of the mineral specimens have been tumbled and polished, which makes them pretty, but removes the diagnostic criteria (cleavage, crystal shapes) that are a basis for identifying minerals. Quartz appears more than once in the collection. Partitions in the plastic box that the collection comes in are thin, and in both of the boxes I bought a heavy specimen had broken a partition in transit, damaging the more fragile specimen in the adjacent cubicle. The accompanying booklet is good, but it shows some minerals that are not in the collection. The small magnifying glass is a good touch.
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