. . . "Phosphate-boundstone"@en . "Phosphate-boundstone - A type of phosphorite, classified on the basis of its biogenic texture. It is a phosphorite in which the original components were bound and encrusted together by the action of plants and animals in the position of growth. British Geological Survey Research Report RR/99/03, section 4.2, table 11 and fig. 8."@en . "stable"@en . "PHBST"@en . . "Phosphate-boundstone"@en .