It is white powder, or it condenses into irregular blocks. It will be pulverized immediately after being twisted by hand, which has a delicate feeling.

Heavy quality.

It is best to be white, delicate and free from impurities.

Insoluble in water and alcohol. Soluble in carbonated water and dilute nitric acid.

It turns black when it meets sulfur ions.

Burning in a closed tube will produce water, and burning on charcoal will produce lead particles.