| 31. | Besides panning and other gold-washing machines, efforts shifted to working the lode deposits, or gold-bearing quartz vein mining.
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| 32. | Dolomitic and veins are widespread throughout the complex as are calcite-quartz veins with minor galena, baryte and chalcopyrite.
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| 33. | The old mine workings exploited leads quartz vein-rich zones in slatey interbeds in the predominately greywhacke succession.
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| 34. | During the explorations by Custer, gold was discovered in a quartz vein on the slopes of Eldorado Peak.
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| 35. | They found fantastic cavities in quartz veins in a limestone, filled with thousands of lustrous emerald-green transparent crystals.
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| 36. | The gold-bearing quartz veins of the Vulture Mine, southwest of Wickenburg, in Maricopa County were discovered in 1863.
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| 37. | Besides placer deposits of gold, and gold bearing quartz in weathered rock, gold also occurs in quartz veins.
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| 38. | By increase of quartz, aplites pass gradually, in a few localities, through highly quartzose modifications into quartz veins.
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| 39. | A series of trenches at 25-meter intervals were dug across the gold deposit which consists of large quartz vein.
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| 40. | Gold and silver mineralization is hosted in over 40 epithermal quartz veins and breccias of low to intermediate sulfidation.
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