What material was often used in african art to depict people of power?

African jewelry

Explanation:

    Something very peculiar about African jewelry is their strong symbolism and their importance is reflected in each of the tribes. From simple to elaborate ornaments, those that were used for specific dances, different wedding ceremonies, or those that decorate the body to draw attention of the opposite sex in order to find a relationship.

    While in other ancient civilizations jewelry indicated social status, in Africa jewelry is used as a symbol of the one who has the most strength and the greatest ability.

Example: Among the most common ornaments is the lip disc, placed on the woman's lower lip before her marriage. This practice is very common in the Ethiopian tribes, and is a mouth-strengthening instrument through which the world and traditions are transmitted. It is made of wood, terracotta or ivory and can measure up to 20 inches in diameter. The larger disk is a symbol of more wealth, as it represents the number of cattle that the woman's family has.

franz marc (d) was an artist during the expressionist movement.