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31. The sulfide mineral mainly consists of pyrite, and a small amount of pyrrhotite, galena and sphalerite.

32. Arsenian pyrite is the most important Au-bearing mineral, and silicification with quartz veins is the well-marked hydrothermal alteration.

33. In this paper, the arsenopyrite and pyrite which enclave gold in arsenical refractory gold concentrate are leached by sodium dichromate in acidic medium. The dearsenication of this method is over 95%.

34. It's a mid scale and its ore belongs to low grade structural altereds tyle, limonite, pyrite are mainly gold carriers.

35. Most of them are highly silicified and sometimes mineralized with pyrite and chalcopyrite.

36. The ore - hunting indicator is of calcite - potassium feldspar veins containing pyritohedron pyrite.

37. Pyrite proved reserves of 14.62 million tons for, mainly distributed in Changzhi, HuGuan counties.

38. The directly sign of deposits is that the contact-belt of magma with stratums , the areas where have been had the mineralization such as molybdenite, pyrite, chalcopyrite, silicon, limonite and so on.

39. Pyrite is a very important gold-bearing mineral in Zhangjiakou gold ore deposit.

40. There ore mineral sphalerite and galena, tetrahedrite, pyrite, white lead, zinc mine, wheel miner's.

41. The invention takes full advantages of the color property of the pyrite cinder and the gelling property of the fly ash, water and sediment and electric lime, which changes waste into valuables.

42. Increasing sulfidation temperature and time can enhance the resistivity of the pyrite films.

43. Desulfurization effect of pyrite sulfur in coal was studied by using the magnetizing cultivates the China coal series and non-coal series thiobacillus ferrooxidans.

44. The hydro-geology in the Xinqiao pyrite mine field is complicated,(www.Sentencedict.com) and ground water flow is big and of burst nature.

45. The analysis of the iron bearing mineral compositions indicates that the major iron bearing minerals in the rocks are magnetite, maghemite, hematite, pyrite and siderite.

46. Desiccation cracks and contracted pores of the primary coagulum are also remarkable in metacrysts of pyrite.

47. By curing process, and used pyrite, pyrolusite and sulfuric acid as material, manganous sulfate was product.

48. Potassium iron blue of high quality was prepared from pyrite cinders.

49. In addition, Han Shan also contain pyrite have even found that there is barite He Shan.

50. The selective adsorption of Nocardia on the surface of pyrite and galena was studied under the condition of various factors.

51. The author find that the cobalt in ore is in the form of indepent minerals, such as siegenite, cobaltite, skutterudite and Co-bearing pyrite etc.

52. A kinetic property of acidulation process of waste product of iron pyrite is studied, kinetic data of acidulation process are measured.

53. The main gold bearing minerals include arsenopyrite, pyrrhotine, pyrite, galena and sphalerite.

54. The sulphur in pyrite cinder occurred in the form of pyrite and anhydrite.

55. Pyrite, galena, sphalerite, native gold[sentencedict.com], electrum and joseite are the main ore minerals.

56. The medicine consists of old cucumber seed, hickory nut kernel, pyrite, infant urine and yellow wine and is prepared through heating, dipping in vinegar, soaking and crushing.

57. Pyrite is the most common metal mineral in gold deposits. It not only has a close relationship with the gold mineralization, but also is the main gold-carrier.

58. Copperas prepared by a reduction method of mechanically activated pyrite from pyrite cinder is featured by low cost, fast reaction speed and high quality.

59. The main ingredient of a semiconductor is silicon, but it might as well be pyrite, or fool's gold. That is because consistently making money out of chips is notoriously difficult.

60. Main metallic minerals in the manganese-silver concentrate were psilomelane, pyrolusite , pyrite, limonite, and a few arsenopyrite, hematite and sphalerite.