Angora Hair Cross-Section
                This is a cross-section sample of angora hair from the
                  sample-set provided by Textile Fabric
                  Consultants, Inc. 
              
              
                Reflected Brightfield Illumination
                
Definition/Function:
                Angora rabbits provide a hair useful for commercial textiles. Each rabbit provides about
                half to nearly a pound of fiber per
                year. The fleece hair is very fine, about 10 to 18 micrometers in diameter. This gives
                the hair its most desirable
                properties. The collection of good quality angora hair is labor intensive, resulting in
                its higher cost.
                Significance in the Environment:
                Angora rabbit hair is generally from knitted clothing of high quality. It may on rare
                occasions be present as pet hair. It
                is present in large quantities at sites working with the commercial aspects of angora
                textiles or the rabbits themselves.
                Characteristic Features:
                Angora hair has a refractive index along its length of about 1.56 and perpendicular to
                its length of about 1.55.
                It has a birefringence of about 0.01 and a positive sign of elongation. The finer hairs
                often do not have a visible
                medulla. When the medulla is present it is uniserial in the smaller hairs and
                multiserial in the large hairs. The cuticle
                pattern varies from a wave mosaic on the larger sections of the hair to a chevron on the
                finer sections.
                Associated Particles:
                References:
                Von Bergen, Werner, WOOL HANDBOOK: VOLUME ONE, Interscience Publishers, pp. 429-445,
                1963