In some of these clay minerals, increased dioxin values were actually found.

The intercalation in clay minerals was major research interest during the start of his academic career.

The little flat ones are about two microns across - they're the clay mineral.

The mechanism is extremely important in the alteration of one clay mineral to another.

Clay minerals need water to form, so the area may once have contained large amounts of water.

The rest is 14% clay minerals and there is also the carbon element.

Clay minerals trap and preserve organic compounds under some conditions.

Some speculate that there is a "elite or a similar clay mineral in a weak solution" of water.

Related tests found results consistent with the presence of smectite clay minerals.

Some grains show signs of secondary alteration to clay minerals.