Eluvial ore deposits are those such as tungsten and gold placer deposits formed by settling and enriched by the winnowing or removal of lower density materials. Eluvial gold placed by the process of gravity on the surface of the hill, up and flat-lying areas. Particles of minerals or ore-forming mineral deposit type is deposited on top of a rocky hillside source. In some areas found in eluvial placer with ingredients that create economic value accumulated in the pockets of bedrock surface. Rainfall helps to bring the material surface, or floating, downslope. Eluvial deposits consist of fragments of rock and soil which are not consolidated lying on the surface. It is derived from coral quartz and other minerals deposits (supergene, reef quartz and layer) located at the top. Transported material contain gold deposits also form on the surface of the slope of the hill where the concentrated on changes in gradients, like, bottom of the hill. Deposits are usually located near the eluvial placer, which is an irregular surface on the hillside below the mineral resource.
Auriferous eluvial placers commonly exhibit considerable gradation and variation in the content and nature of their gold and associated heavy and light minerals. Near the primary deposits the particles of gold are invariably larger and commonly of less fineness than those farther down the dispersion fans and trains on the slopes. During the downward creep of minerals and rock fragments on slopes the lighter fractions tend to gravitate to the top layers and move relatively faster downhill than the heavier fractions. This is why one commonly finds a greater concentration of light minerals and rock fragments such as quartz floats at the foot of hills and mountains rather than farther uphill and at the outcrop of auriferous quartz veins. Finally, nonuniformity and erratic behavior commonly prevail in the continuity and value of the pay streak in most eluvial placers, a feature that dictates that most of these deposits must be carefully pitted, trenched, drilled and evaluated before exploitation. 
Eluvial or Residual placers. These originate in those regions where gold bearing rocks are subjected to deep weathering, during which the gold may undergo more or less concentration, and also migrate down slope to some extent. The residual placers are those in which there has been no water transportation, the concentration of gold being due solely to rock weathering. The gold grains are usually angular, as they have not been exposed to the wearing action of streams.The location consists of a mixture of rock, gravel and debris that has been weathered and destroyed the nearby hill is the place easy to find gold. Gold is found in locations like this are usually rough and very concentrated on the bedrock. Eluvial containing gold and scheelite material highly enriched in arsenic, antimony and tungsten features that can be used in geochemical candidate for this type of deposit.
Gold is found in locations like this are usually rough and very concentrated on the bedrock. Eluvial placers are known for their large nuggets or masses of gold, some weighing several hundred to a thousand ounces or more; alluvial placers only rarely contain large nuggets (>100 oz). Some eluvial placers yield silver, lead, cassiterite, cinnabar, diamonds and platinoids in addition to gold. A few descriptions of typical Examples of eluvial deposits follow.Eluvial containing gold and scheelite material highly enriched in arsenic, antimony and tungsten features that can be used in geochemical candidate for this type of deposit.Gold in fine fraction of gravel and sand-free; in coarse fraction is mainly in sulfide minerals (pyrite, arsenopyrite, galena, sphalerite, stibnit, sulphosalts silver) and their oxidation products. Part of the silver in sulfide and alloy sulphosalts and part is with real gold. Average test some placer materials show the following: Sn 84 ppm, 15 ppm Hg, 9.44 ppm Ag and 0058 ppm Au. Approximately 550 million m3 of gravel are present in the fans.
Gold forms crystal deposits in hard rock is generally known as veins. A layer is usually formed in areas where the rocks that contain veins have been altered in some way. Gold is found in layers that are bound with sulfide minerals and Telluride. Mineral gradually destroyed by natural wind or rain, leaving only the gold behind. gold may range from pieces of grain-size nuggets.
Gold forms crystal deposits in hard rock is generally known as veins. A layer is usually formed in areas where the rocks that contain veins have been altered in some way. Gold is found in layers that are bound with sulfide minerals and Telluride. Mineral gradually destroyed by natural wind or rain, leaving only the gold behind. gold may range from pieces of grain-size nuggets.
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