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RocKeeper Launches!

The world of rockhounding just got a whole lot more fun!

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Mineral Varieties

A quick glance at Peter Bayliss' Glossary of Obsolete Mineral Names reveals tens of thousands of varietal names; that is, names that do not represent significant differences to a mineralogist, but nonetheless are commonly used to describe color or chemistry or structural variations of a mineral.

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Mineral Series

One of the challenges in rockhounding is dealing with the occasional conflict between scientific precision and collecting pragmatism. A good example is mineral series: Aside from laboratory analysis, there is no way to differentiate between Heulandite-(Ca) and Heulandite-(Na).