What's the difference between martite and pseudomorph?

Martite

Definition:

(n.) Iron sesquioxide in isometric form, probably a pseudomorph after magnetite.

Example Sentences:

(1) 2 conclusions concerning fertility are more likely than the average married couple to have had a pre-maritally conceived child, and 2) that couples who divorce relatively quickly tend on average to have larger family sizes, even if children who were pre-martitally conceived are exluded.

Definition:

(n.) An irregular or deceptive form.
(n.) A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution.

Example Sentences:

(1) SEM examination revealed structures similar to human stones such as bipyramidal weddellite, pseudomorphs from whewellite to weddellite, apatite deposits in cystine stones and characteristic mono-ammonium-urate needles.
(2) Pseudomorphous foliated texture and cross-cutting relationships indicate replacement of talc by sepiolite.
(3) Mature ependymal cells were either: columnar, pseudocolumnar, cuboidal, squamous, or pseudomorphic; had cilia and villi on only one surface of the cell and shared tight junctions when contiguous.
(4) The radiographic findings of the patients with poorer prognosis tended to show three patterns of tumor shadows: more than 5 cm in diameter, dense with spicular radiation, ill-marginated, faint and pseudomorphic with pleural indentation.