phosphate rock in a sentence

Examples

1. Phosphate rock is a general term that refers to rock with high concentration of phosphate minerals, most commonly of the apatite group.
2. It occurs in association with crandallite and variscite in fractures in aluminous metamorphic rock, in hydrothermal regions and in phosphate rock deposits.
3. Phosphoric acid is reacted with phosphate rock to produce the fertilizer triple superphosphate or with anhydrous ammonia to produce the ammonium phosphate fertilizers.
4. "Narau is a phosphate rock island, and its primary economic activity since 1907 has been the export of phosphate mined from the island.
5. Hydrographic surveys in the Ashley showed washings of crushed phosphate rock at riverside works had increased shoals and diminished navigation of the river.
6. In 2015, fluorosilic acid equivalent to 114, 000 tons of fluorite ( fluorspar ) was produced as a byproduct of phosphate rock processing.
7. Nauru is a phosphate rock island, and its primary economic activity since 1907 has been the export of phosphate mined from the island.
8. Phosphate rock remains a feedstock in the fertiliser industry, where it is treated with sulfuric acid to produce various " superphosphate " fertiliser products.
9. Phosphate rock was abundant in the Soviet Union, but because extraction costs were high most of this mineral was imported from Morocco and Syria.
10. The International Fertilizer Development Center ( IFDC ) in a 2010 report estimated that global phosphate rock resources would last for several hundred years.