| 41. | Desert pavement surfaces are often coated with desert varnish, a dark brown, sometimes shiny coating that contains clay minerals.
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| 42. | From 1947-1949 there were again unsuccessful attempts to mine the remaining clay minerals in eastern field of the mine.
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| 43. | The OMEGA experiment on Mars Express discovered clay minerals ( phyllosilicates ) in a variety places in Aureum Chaos.
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| 44. | Shales are typically composed of variable amounts of clay minerals and quartz grains and the typical color is gray.
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| 45. | Some speculate that there is a " elite or a similar clay mineral in a weak solution " of water.
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| 46. | The OMEGA experiment on Mars Express discovered clay minerals ( phyllosilicates ) in a variety of places in Aureum Chaos.
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| 47. | The strongest blocky structure is formed as a result of swelling and shrinking of the clay minerals which produce cracks.
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| 48. | Gram for gram, the capacity of humus to hold nutrients and water is far greater than that of clay minerals.
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| 49. | Two canyons were cut in the mound through the layers containing clay minerals and sulfate salts after deposition of the layers.
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| 50. | The adjective " argillaceous " is also used to define rocks in which clay minerals are a secondary but significant component.
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