Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  habitus(noun) person's predisposition to be affected by something (as a disease) the consumptive habitus. 2  physique, build, body-build, habitus(noun) constitution of the human body.
A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition.
A rock is composed of combinations of minerals, each mineral having its own chemical formula and crystalline structure.Minerals are composed of an element or combination of elements. rock is combinations of minerals and either has to be an igneous, metamorphic, or sedimentary rock. A mineral is a solid that was formed in nature, has a definite chemical â¦ makeup, and has a crystal structure.