_:b670475559 "Some authorities consider sandy clay to be a soil composed of 45-65% of sand, 0-20% of silt and 35-55% of clay. If the proportion of sand exceeds that of clay, it is unclear whether this is still considered clay (due to other properties) or whether a new class \"clay sand\" should be created."@en . _:b670475559 "USDA textural classes of soils" . _:b670475559 . _:b670475559 . _:b670475559 . _:b670475559 "https://www.fao.org/fishery/docs/CDrom/FAO_Training/FAO_Training/General/x6706e/x6706e06.htm" . _:b670475559 .