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1. To determine whether a metal is gold or pyrite, one consults a metallurgist.

2. When rain water hits pyrite ore, it forms sulfuric acid, which leaches out copper and other metals.

3. When the wetlands are drained the iron pyrites in the soil are exposed to air and form sulphur acid.

4. Diagenetic pyrite in the Lower Palaeozoic rocks of the Southern Uplands provided a sulphur reservoir.

5. The scientists warn that the deposits of pyrites are too large to neutralize by liming.

6. The pyrite cinder is the industrial solid waste.

7. Pyrite is the main gold-bearing mineral.

8. Authigenic pyrite is the normal product of anoxic sulfate reduction in marine sediments.

9. The effect of presence of pyrite and pyrrhotite on the conversion of lead sulfide into lead carbonate in ammonium carbonate solution was investigated.

10. The features of micro-crystal morphology of pyrite have an important significance of instructing their form conditions.

11. Native ruthenium and hedleyite were identified in the pyrite quartz lodes.

12. The results show that the fine-grained hypidiomorphic pyrite, with a crystal form of pentagonal dodecahedron, contains more Au than others.

13. The pyrite and siderite associated with the ores have been oxidized into limonite, hemitite and goethite.

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14. Gold was also reported from minor quartz veins, with pyrite, chalcopyrite and galena, at Stronchullin in Strathclyde.

15. The gold-bearing ore veins consist of microcline from intermediate to maximum, quartz, pyrite and microcrystalline natural gold.

16. The beresite from the Shuangshanzi gold mine contains a number of coarse-grained pyrite crystals with regular zonal structure.

17. The ores consist of more than 40 kinds of minerals, such as argentite, galena, sphalerite, chalcopyrite, quartz and pyrite.

18. There are two major ore types, namely, oxidized ore dominated by gold -bearing limonite and primary ore dominated by gold-bearing pyrite.

19. Pitchblende is the only primary uranium mineral, which is associated with quartz, fluorite, hematite and pyrite.

20. A new type of effective complex coagulant polysilicate aluminum ferric salt(PSAF) was prepared from coal gangue and pyrite slag and used as coagulant in the treatment of vegetable oil wastewater.

21. This paper tries to make it clear the existing forms of the REE in gold-bearing pyrite in the Jinshan gold deposit by the stepwise dissolution test with ICP-MS analysis.

22. An account about the application of ultrasonic nebulization technique in dust removing in xinqiao pyrite mineral processing plant is given.

23. The result showed that dominant minerals were amphibole group, epidote group, schistose minerals(sentencedict.com), authigenous pyrite and metallic minerals.

24. A new type of effective complex coagulant polysilicate aluminum ferric salt(PSAF) was prepared from coal gangue and pyrite slag and used as coagulant in the treatment of papermaking wastewater.

25. Nature Gold is hosted in that as fissures ? interstice ? margin and crystal face of the Pyrite.

26. New process of preparing high pure ferric oxide red with pyrite cinder was studied.

27. The new technology for the preparation of superfine ferric oxide from pyrite cinder is studied.

28. Associated Minerals are halite , calcite , sulfur , pyrite , borax and many others.

29. Ore minerals are composed of psilomelane, pyrolusite, braunite, rhodochrosite and manganocalcite and gangue minerals are composed of magnetite, goethite and pyrite and so on.

30. Using tri-frequency induced polarization relative phase, the anomalies of induced polarization aroused by pyrite or graphite can be distinguished quickly and directly.