Amosite

An iron-rich amphibole that is a variety of asbestos

Amosite asbestos was used less frequently in manufacturing plants in the United States than chrysotile asbestos.

South African mines were the source of most of the amosite used in the United States.

This type of asbestos was named "amosite" as a description of the source of the ore, "asbestos mines of South Africa".