Apologies, but it seems there is no information about a chemical compound named “CrFmO3”. This name does not follow the usual rules for naming chemical compounds and cannot be found in any chemical reference sources.
The elemental component “Cr” corresponds to Chromium, “O” corresponds to Oxygen, but the element “Fm” does not exist. You may have made a mistake or typo.
Many chemical elements have symbols that start with “F”, but no element has the symbol “Fm”. Starting with “F”, we have Fluorine (F), Iron (Ferum, Fe), Francium (Fr), and many other elements.
I suggest you review your information, or if you need information about a specific different compound, let me know!