RE:Results likely soon. Remember Yellow & green quartz
Lausen (1931) distinguished five stages of vein filling that are determined by the color and texture of quartz and the ratio of gold to silver in associated deposits. He suggested that early, colorless to yellow quartz has Au:Ag of 1:6 to 2:3, and that late, pale green to honey-yellow quartz has Au:Ag of 1:2 to 4:1 and contains more gold and silver than early quartz. Smith (1984) determined that most of the commercially valuable ore was deposited during the fourth of Lausen's five stages, and was positively correlated with the amount of adularia. Most of the samples from veins in the Oatman area analyzed by Smith had Au:Ag of 1:2 to 1:6, but much lower ratios (from 1:10 to 1:100) were noted. In a sample from the Gold Road vein representing Lausen's fourth or fifth stage and containing 35 discrete mineralized bands, Smith determined that gold and silver concentrations decreased and Au:Ag decreased from older to younger bands. These trends for one stage of mineralization are opposite to the overall trends noted above for the district.