The Clay Minerals Society

Source Clays Availability

A list of the available Source Clays can be found here.

Another list of the available Special Clays can be found here.

Ordering Information:
The prices for Source and Special Clays include Ground UPS within the continental United States. Air postage and International Shipping charges are additional. Please contact G.S. Premachandra at sourceclays@purdue.edu (voice 765 494 4258 or FAX 765 496 2926 ) for more information about these charges.

The clays offered by the Source Clays Project change frequently because of new acquisitions and depletion of old supplies. The Source Clays Project is always grateful for new acquisitions, particularly of clays that have become depleted. If you are able to provide access to a new source of source or special clays, please contact the curator.

The following Source Clays are completely depleted.

We would appreciate knowing new sources or suppliers of the following materials:

CorWa-1 Corrensite, Packwood, Washington (Ohanapecosh Form.) Altered Eocene tuff, containing 25-50% corrensite; quartz and plagioclase impurities separable by wet sedimentation. Need new supplier.

NG-1 Nontronite, Hohen Hagen, Germany, Nontronite-cemented sand (15-20% nontronite), easily separated by wet sedimentation (Char. by Schneiderhoehn, Tschermaks Min. u. Pet. Mitt., 10, 385-399, 1965). Need new supplier.

SepNev-1 Sepiolite, Two Crows, Nevada (pub. ref Clays and Clay Minerals, v. 26, p. 58-64, 1978). Need new supplier.

VTx-1 Vermiculite, Llano, Texas, USA, a mixture of magnesite, phlogopite, and vermiculite. The vermiculite can be separated by hand picking. Plans made to replace.