Bones

Human bones:

non-living intercellular material of bone comprises of organic component called collagen (a fibrous protein arranged in long strands or bundles similar in structure and organization to the collagen of ligaments, tendons, and skin) and an inorganic mineral component in the form of rod-shaped crystals. These crystals are arranged parallel with the long axes of collagen bundles and many actually lie in voids within the bundles themselves.
Almost all the bones in humans are made of same materials.

Biology of Bone Tissue: Structure, Function, and Factors That Influence Bone Cells:

Rinaldo Florencio-Silva, Gisela Rodrigues da Silva Sasso, Estela Sasso-Cerri, Manuel Jesus Simões, Paulo Sérgio Cerri, "Biology of Bone Tissue: Structure, Function, and Factors That Influence Bone Cells", BioMed Research International, vol. 2015, Article ID 421746, 17 pages, 2015. https://doi.org/10.1155/2015/421746

Jeroen Aerssens, Steven Boonen, Geert Lowet, Jan Dequeker, Interspecies Differences in Bone Composition, Density, and Quality: Potential Implications for in Vivo Bone Research, Endocrinology, Volume 139, Issue 2, 1 February 1998, Pages 663–670, https://doi.org/10.1210/endo.139.2.5751

bone ECM in bone formation and regeneration

The matrix of cartilage is made up of glycosaminoglycans, proteoglycans, collagen fibers and elastin. Specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers

types and composition:

Yang Xia, Konstantin I. Momot, Zhe Chen, Christopher T. Chen, David Kahn and Farid Badar, CHAPTER 1:Introduction to Cartilage , in Biophysics and Biochemistry of Cartilage by NMR and MRI, 2016, pp.

Archaeological and Anthropological Sciences (2020) 12: 76 https://doi.org/10.1007/s12520-020-01019-z v

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