An extracellular matrix consisting of a densely packed organomineral assembly in which the mineral phase represents the majority of the material by weight.
Source:
GOC:jh2,
PMID:15994301
Comment
An example is found in shell calcitic prisms of the Mediterranean fan mussel Pinna nobilis (PMID:15994301), but the term may also be useful to annotate bone and eggshell proteins.