is there any special animal breed from where they source the second material?
Rambouillet rams
Navajo weaving
 In 1903, federal agents attempted to address the problem by introducing Rambouillet rams into the breeding population.
what kind of tools did the navajo tribe use UNANSWERABLE in which regions are these tribes found? Four Corners area of the United States. what places come under that corner area? The Four Corners is a region of the United States consisting of the southwestern corner of Colorado, southeastern corner of Utah, northeastern corner of Arizona, and northwestern corner of New Mexico. what materials did those tribes use to weave their products? three-ply yarn and wool
wiki:15389308
Navajo weaving [SEP] Wool and yarn
Increasing proportions of brittle kemp can be found in well-preserved examples from the period. In 1903, federal agents attempted to address the problem by introducing Rambouillet rams into the breeding population. The Rambouillet is a French breed that produces good meat and heavy, fine-wool fleeces. The Rambouillet stock were well adapted to the Southwestern climate, but their wool was less suitable to hand spinning. Short-stapled Rambouillet wool has a tight crimp, which makes hand spinning difficult. The higher lanolin content of its wool necessitated significantly more scouring with scarce water before it could be dyed effectively. From 1920 to 1940, when Rambouillet bloodlines dominated the tribe's stock, Navajo rugs have a characteristically curly wool and sometimes a knotted or lumpy appearance.