21. Low-temperature synthesis of clay minerals ( with kaolinite as an example ) has several aspects. 22. Clay minerals in the A horizon decompose by reaction with humic acids and form soluble salts.23. Note that caesium is not mobile in most soils because it binds to the clay minerals . 24. Although clay-sized, the flour particles are not clay minerals , but typically ground up quartz and feldspar. 25. The carbonates were found near the clay minerals . 26. The composition of porcelain is highly variable, but the clay mineral kaolinite is often a raw material. 27. SIlver ore occurs in hydrothermal veins or as sulfides and clay minerals replacing the Jurassic Pucara limestone. 28. Earlier, the instrument had detected clay minerals . 29. They are clay minerals , also called phyllosilicates. 30. Clay minerals also bind particles of organic material to their surface, making them less accessibly to microbes.
