Amber is black, but it is either black lake amber or amber.

Modern pearl treasure critics divide amber into six categories, namely "Jin Po, Waper, Xueper, Wengper, Huaper and Lingper".

Their characteristics are:

Transparent and golden yellow is Jin Po;

Orange and opaque is called wax (or beeswax);

Scarlet is blood amber;

It is Weng Po who is impenetrable in the dark;

There are also buds, flowers and grass with sawdust.

Lamper is characterized by being black when viewed vertically with naked eyes and bright red when illuminated by light.

Because living alone is a symbol of dignity and auspiciousness, Catwoman has always been regarded as a treasure by dignitaries and rich people, and making Buddha beads with it is the best sacred object for Buddhist disciples and believers to worship Buddha.