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31, Spirit found the plateau to be surrounded by deposits of opal.

32, Opal Darkbriar says , Make no mistake, it is just a temporary convenience.

33, The production of selenium ruby easing opal glass by using the said casing cullet has been recommended.

34, Swiss-made, gold-plated,(http://sentencedict.com/opal.html) stainless steel quartz watch; square case with gold-coloured sunray dial; White Opal Satin Crystal Mesh bracelet with magnetic buckle.

35, When radon gas emitted as springs, very quickly, a phenomenon opal.

36, Opal paste liquid , It's applicable for vibration brighting and centrifugal grinding for aluminum alloy steel parts.

37, This is an arrangement similar to that found in opal (except that in opal the spheres are made of silica) and the result is, indeed, opalescent.

38, She comes up to the top of the tower overlooking Opal Gate.

39, After that, a layer of nickel was electrodeposited on the opal, which was then etched away. The porosity of the nickel layer was then increased using electropolishing.

40, A client from Greece looks for laser engraver machines to engrave portrait on crystal & opal.

41, The impurities of carbonate, amorphous opal, quartz etc. are removed successively by the steps of soda washing, EDTA complex, centrifuging, micro-pore film filter etc.

42, Green changed to white, emerald to an opal: nothing was changed.

43, The antimony ores are mainly composed of such minerals as stibnite, quartz, opal and calcite.

44, Based on the Bragg's law, the ordered TiO2 inverse opal films were successfully used as refractive index sensors with a resolution of 0.01.

45, Lonely creeks are opal in the dawn, sword - blue in the sun, greyly silver under misty moons.

46, An inverse opal designed to determine if ethanol is laced with methanol could thus reveal the letter M if the poison is present.

47, The preparation of the ceramic-type containers with opal glass which was melted in electric furnance, substitutes for the traditional production technology of ceramics.

48, Opal: I sure hope Bill stays faithful from now on. He doesn't deserve her.

49, SEM is an important means for the observation and study of the artificial opal photonic crystal.

50, Oxidized rhodium plated stud drop earring with blue opal and clear crystal.

51, These elegant leaf shaped wire forms are accented by an Australian opal cabochon. Available in silver.