wholesale wooden jewelry boxes What color of gold unearthed from the grave
1 thought on “wholesale wooden jewelry boxes What color of gold unearthed from the grave”
Leave a Comment
You must be logged in to post a comment.
Shopping Cart
wholesale wooden jewelry boxes What color of gold unearthed from the grave
You must be logged in to post a comment.
bling costume jewelry wholesale The stability of gold is very good, and it is also yellow when unearthed.
It color distinction:
pure gold: shiny dark yellow, thick yellow;
-containing silver gold: lighter color, slightly pale green; Gold: Earth White;
Gold containing copper: Deep color, red tone;
gold containing silver and copper gold: yellow;
gold containing zinc, copper, nickel gold: platinum.
Per other methods:
1. Only when there is comparison. The proportion of gold is 19.3 grams of 1 cubic centimeter, which is doubled than the copper (brass 8.5 grams). The contrast is clear. As long as the weight is weighed, comparison, it will be self -evident. Real gold is not afraid of fire. It is the reason that everyone knows. Put the gold jewelry in the fire and burn red. After cooling, if the surface is still golden yellow, it is real gold; if it turns black, it is fake gold.
2, the hardness of the real gold is low, less than 3 (Mo's hardness is 0-10) to bite with teeth, leaving tooth marks. The lower the color, the harder, and the higher the color, the softer.