Ward’s Natural Science Source of a variety of mineral standards and teaching aids.

The Clay Minerals Society maintains a Source Clay Repository containing two series of materials, the Source Clays and the Special Clays. The list of available clays is posted at the Clay Minerals Society web site.

Minerals Research, probably the best source of natural zeolites, including a variety of clay and zeolite hand and reference samples and tetrahedral models of zeolites, unfortunately is no longer in business. Fred Mumpton will be missed by all.

In addition to the above sources, many companies that mine and/or sell natural zeolites are listed below. Please email INZA Webmaster to request inclusion to or removal from this list. In general, only companies that mine or market bulk quantities of natural zeolite will be listed. The listing of these companies does not imply endorsement by INZA.

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