真金可以使您的手指变成绿色吗？
有时是的。这种绿色来自您的皮肤与黄金中其他金属（通常是铜或镍）的反应，而不是黄金本身。
 this can happen even with 24 karat "pure gold," since other metals can be added to strengthen it. but it's even more likely with 10 or or 14 karat gold.
rings, being circular, have no beginning or end. roughly 5,000 years ago, the egyptians began using them as tokens of their "endless" love 和 devotion 和 greek 和 roman lovers soon followed.