These categories for bone and matrix, however, are not mutually exclusive, since bones of any of these colors and exhibiting any degree of wear and fragmentation are found in any of the kinds of matrix described above.
"Two New Pelycosaurs from the Lower Permian of Oklahoma"
Richard C. Fox
The abolition movement itself was weakened by internal fragmentation.
"The Black Experience in America The Immigrant Heritage of America"
Norman Coombs
Two general types of reactions, known as spallation and fragmentation, are distinguished.
"LRL Accelerators The 184-Inch Synchrocyclotron"
Lawrence Radiation Laboratory